Sam has some red and yellow cubes. She has 20 cubes in total. She has 8 more yellow cubes than red ones. How many red cubes does she have?Sam has some red and yellow cubes. She has 20 cubes in total. She has 8 more yellow cubes than red ones. How many red cubes does she have?

Answers

Answer 1

Answer:

6

Step-by-step explanation:

Let's call the number of red cubes that Sam has r, and the number of yellow cubes that she has y.

Since the sum of the number of cubes is 20:

r+y=20

Since she has 8 more yellow cubes than red ones:

y=r+8

You can now plug this back into the first equation:

r+(r+8)=20

2r+8=20

2r=12

r=6

Therefore, Sam has 6 red cubes. Hope this helps!

Hope this helps!

Answer 2

Answer:

6 red cubes

Step-by-step explanation:

Let statements: let y be the number of yellow cubes, and let r be the number of red cubes.

r+y=20

r+8=y

r+(r+8)=20

2r+8=20

2r=12

r=6


Related Questions

5 The absolute value of 9 is 9.
O True
O False​

Answers

Answer: True

Explanation:

absolute value is always positive and represents the values distance from zero. The absolute of 9 and -9 are both 9.

Answer:

True

Step-by-step explanation:

The absolute value of a number is its distance from zero on the number line. The distance of 9 from 0 is 9.

5.
If m • 6 + 3 x 4 = 240, the value of m is
(1) 28
(2) 38
(3) 40
(4) 43

Answers

Answer:

38

Step-by-step explanation:

The rule of PEMDAS (parentheses, exponents, multiply, divide, addition, subtraction) must be followed when solving this equation.

1. Simplify the equation

m · 6 + 3 · 4 = 240

m · 6 + 12 = 240

2. Solve for m

- subtract 12 from both sides

m · 6 = 228

- divide both sides by 6

228 ÷ 6 = 38

m = 38

Answer:

38 is right

Step-by-step explanation

i just took the test

The ant repeats the two steps 7 times going around the polygon until it reaches its starting position .the ant makes one complete revolution (360 degree) to draw this regular 7 sided polygon. The value of A correct to 1 decimal place is ____________

Answers

Answer:

(C)51.4 degrees

Step-by-step explanation:

The sum of the exterior angle of a polygon is 360 degrees. (one complete revolution).

Given a regular polygon, the sum of each exterior angle is calculated using the formula:

[tex]\dfrac{360^\circ}{n}[/tex] where n is the number of sides.

The regular polygon shown made by the ant has 7 sides.

Therefore:

Each exterior angle [tex]=\dfrac{360^\circ}{7}=51.43^\circ[/tex]

Therefore:

The value of A correct to 1 decimal place is 51.4 degrees.

The correct option is C.

Answer:

The correct value of A to 1 decimal place is [tex]51.4^o[/tex].

Step-by-step explanation:

Given information:

The ant repeats the two steps 7 times going around the polygon

The sum of the exterior angle of polygon is [tex]360^o[/tex]

The formula for the exterior angle is

[tex]= 360/n[/tex]

Here,

[tex]n=7[/tex]

Hence, the Value of A will be

[tex]A=360/7\\A=51.4^o[/tex]

The correct value of A to 1 decimal place is [tex]51.4^o[/tex].

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Ronald ran 6 laps in 12 minutes. Which ratio can be used to find the number of laps that Ronald ran in 1 minute?


Answers

Answer:

6/12

Step-by-step explanation:

Got it right on test

Answer: 6 / 12

Step-by-step explanation: I took the test 2 hours ago xD

ANSWER


Find the scale factor of the dilation shown in the diagram. 1/2 1/3 2 3

Answers

The scale factor of the dilation shown in the diagram 2.

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

We have to given that;

The image and pre image are shown in figure.

Now, We know that;

The basic formula to find the scale factor of a dilated figure is,

⇒ Scale factor = Dimension of the new shape ÷ Dimension of the original shape.

Substitute the given values, we get;

⇒ Scale factor = 6 / 3

⇒ Scale factor = 2

Thus, The scale factor of the dilation shown in the diagram 2.

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Answer:1/2

Step-by-step explanation:

got it right on edge

What is the solution of the following system 5x+2y+z=4 x+2z=4 2x+y-z=-1

Answers

Let us take the 2nd equation.

x + 2z = 4

x = 4 - 2z

Let us substitute this value of x in equation 1.

5x + 2y + z = 4

5(4-2z) + 2y + z = 4

20 - 10z + 2y + z = 4

2y - 9z + 20 = 4

2y = 9z - 16

y = (9z - 16)/2

Let us substitute this value of y, as well as that of x that we used earlier, in the third equation.

2x + y - z = -1

2(4-2z) + (9z-16)/2 + z = -1

8 - 4z + (9z/2) - 8 + z = -1

Let us multiply both sides of this equation by 2.

16 - 8z + 9z - 16 + 2z = -2

3z = -2

z = [tex]\frac{-2}{3}[/tex]

x = 4 - 2z

  = 4 + [tex]\frac{4}{3}[/tex]

  = [tex]\frac{16}{3}[/tex]

y = (9z-16)/2

  = ([tex]\frac{-18}{3}[/tex] - 16)/2

  = ( [tex]\frac{-66}{3}[/tex])/2

  = -22/2

  = -11

Therefore, x = [tex]\frac{16}{3}[/tex], y = -11, and z = [tex]\frac{-2}{3}[/tex].

Do 26 and if u want to do 27 too I’ll give Brainlynest

Answers

Answer:

26) translation: (x - 4, y + 3)

27) see down below

Step-by-step explanation:

26) Its a translation since the shape isn't reflected nor rotated. To find the translation, you can see that the shape would move 4 to the left (- 4), and up 3 ( + 3), which gives you (x - 4, y + 3) (x determines left/right and y determines up/down).

27)

<1 = 135

<2 = 45

<3 = 45

<4 = x = 20

<5 = 135

<6 = 45

<8 = 135

It takes 1 hour (t) to fill the water tank of volume (V) 750 m3. Identify the dependent and the independent variables.

Answers

Answer:

The time t is the independent variable while the volume V is the dependent variable

Step-by-step explanation:

A variable is a parameter that changes.

We have two types namely dependent and independent variables.

A dependent variable is a variable which its value needs to be determined based on the value of another variable while and independent variable is a variable which its value independent of other parameters.

In our question, It takes 1 hour (t) to fill the water tank of volume (V) 750 m3.

The volume of the tank V changes as time changes. So the volume of the tank V is dependent on time, t.  

So V is proportional to t

Since the volume of the tank is the variable that needs to be determined based on another variable-which is time,t- it is the dependent variable, while the time,t is the independent variable since its value is not determined based on other parameters.

An open cone has a slant height of 5m and a curved surface area of 251, Find the radius of the circular base.What is the answer:18 16

Answers

Answer:

Radius of the cone = 16 m

Step-by-step explanation:

Slant height of the cone 'l' = 5 m

Curved surface area of the cone is represented by the formula,

Curved surface area = πrl

Here r = radius of the circular base of the cone

l = slant height of the cone

By putting the values in the formula,

251 = πrl

251 = πr(5)

r = [tex]\frac{251}{5\pi}[/tex]

r = 15.979

r ≈ 16 m

Therefore, radius of the given cone will be 16 m.

The wholesale price of a sweater is $ 35 . The retail price of the sweater is 10 % more than the wholesale price. What is the retail price of the sweater?

Answers

Answer:

$38.5

Step-by-step explanation:

In this problem we are going to first solve for 10% of $35 an add it to the wholesale price to get the retail price

10% of $35

[tex]\frac{10}{100}*35= 0.1*35= 3.5[/tex]

The retail price is 3.5+35= $38.5

Answer:

$38.50

Step-by-step explanation:

1) Point M divides line segment AB, in the direction from A to B. in a ratio of 4 to 9. What value on the number line
would indicate the location of point M?​

Answers

Answer:

Point M will be located between 0 and 1 at [tex]\frac{1}{13}[/tex].

Step-by-step explanation:

Two points A and B have been given on a number line.

Point A is at -3 and point B at 7.

Distance between these points AB = 7 - (-3)

                                                           = 7 + 3

                                                           = 10 units

Another point M divides the given segment AB in the ratio of 4 : 9.

Therefore, length of segment AM will be = [tex]\frac{4\times 10}{(4+9)}[/tex]

                                                                    = [tex]\frac{40}{13}[/tex]

                                                                    = [tex]3\frac{1}{13}[/tex] units

Now the position of point M will be at [tex](-3+3\frac{1}{13})[/tex] = [tex]\frac{1}{13}[/tex]

Therefore, point M will be located between 0 and 1 at [tex]\frac{1}{13}[/tex].

PLEASE I REALLY NEED HELP What differences are there on the graph of f(x)=2x to the graph of h(x)=2x-3?

Answers

Answer:

The graph if h(x) =2x-3 will have the same slope, but placed lower on the graph, because it's y intercept is -3, while the y-int of f(x) is 0, which is higher up on the y axis

can someone please help me

Answers

Answer:

C. Adding 18 to both sides isolates the variable term

Step-by-step explanation:

We can get rid of A and C because we can clearly see that we are adding, not subtracting.

The reason why C is correct is because we are isolating 6x, the term, and not x, the variable.

C. Adding 18 to both sides isolates the variable term.

Your end goal is to isolate “x” which is a variable. However, the variable is multiplied by 6 and is “6x” making it a variable term. You must first isolate the variable term before you can isolate the variable itself. So step 1 is to add 18 to both sides (cancelling it out on the left side of the equals sign), thus isolating the variable term.

Use each of the digits 2,4,6 and 7 to make this calculation correct ?.?+?.?=10​

Answers

Answer:

2.6+7.4 or 2.4+7.6

Step-by-step explanation:

Both of the above equals to 10!

When hourly employees work beyond 40 hours in a week, federal law requires that they receive __________ pay. A. commissioned B. exempt C. overtime D. salaried Please select the best answer from the choices provided A B C D

Answers

Answer: D

Step-by-step explanation:

Answer:

Answer: D

Step-by-step explanation:

translate 22% of b into an expression

Answers

Answer:

11/50b

Step-by-step explanation:

22% of b = 22/100×b

= 11/50b

Quadrilateral ABCD is similiar to quadrilateral EFGH. The lengths of the three longest sides in quadrilateral ABCD are 24 feet, 32 feet, and 48 feet long. If the two shortest sides of quadrilateral EFGH are 9 feet long and 18 feet long, how long is the 2nd longest side on quadrilateral EFGH?

Answers

Answer:

24 feet

Step-by-step explanation:

12 ÷ 18=16/y

2y=3*16

y=24

Two mechanics were working on your car. One can complete the given job in six hours, but the new guy takes eight hours. They worked together for the first two hours, but then the first guy left to help another mechanic on a different job. How long will it take the new guy to finish your car?

Answers

Answer:

  3 1/3 hours

Step-by-step explanation:

In 2 hours, the first guy did 2/6 = 1/3 of the job. Meanwhile, the new guy did 2/8 = 1/4 of the job. When the first guy left, the remaining amount of the job was ...

  1 - 1/3 - 1/4 = 12/12 -4/12 -3/12 = 5/12 . . . . . fraction of job remaining

So, completion of the remaining 5/12 of the job will take the new guy ...

  (5/12)(8 hours) = 10/3 hours = 3 1/3 hours

Triangle X Y Z is shown. If m∠X = 34° and m∠Z = 26°, what is m∠Y?

Answers

Answer:

given, triangle XYZ in which m of angle X=34°

angle Z= 26°

now,angle Y =?

we have,

AngleX + angle Y+ angle Z = 180°

or, 34°+angle Y +26°=180°

or, angle Y= 180°-60°

therefore, angle Y =120°.

hope it helped..

Answer:

Triangle X Y Z is shown.

If m∠X = 34° and m∠Z = 26°, what is m∠Y?

Answer:

m∠Y = 120°

Step-by-step explanation:

I just took the test and got 100% on Edge2021

A teacher writes the name of each of her 25 students on a slip of paper and places the papers in a box. To call on a student, she draws a slip of paper form the box. Each paper is equally likely to be drawn, and the papers are replaced in the box after each draw. If there are 9 students in the last row, what is the probability of calling on a student in the last row

Answers

Answer:

36%

Step-by-step explanation:

Total Number of Students = 25

The number of students on the last row = 9

The probability of calling a student in the last row

[tex]=\dfrac{\text{The number of students on the last row}}{\text{Total Number of Students}}\\\\=\dfrac{9}{25}\\\\=0.36\\\\=0.36 \times 100\\\\=36\%[/tex]

The probability of calling a student in the last row is 36%.

Answer:

B 0.36

Step-by-step explanation:

solve 2x - 1/5 + 2x - 19.6​

Answers

Answer:

x = 4.95

Step-by-step explanation:

4x - 19.8 = 0

4x = 19.8

x = 4.95

Exactly as above, if you solve by simple simplification then the steps would be very understandable

Gwen is travelling to another country. She flies for 3 hours at an average speed of 625 km/h on one plane. She then flies for 4 hours 15 minutes at an average speed of 880 km/h on a second plane. What is the total distance, in km, she travelled by plane?

Answers

Answer:

5,615 km.

Step-by-step explanation:

The first flight, she traveled for 3 hours at a speed of 625 km/h.

[tex]\frac{625}{1} =\frac{x}{3}[/tex]

x = 625 * 3

x = 1,875.

The first flight, she traveled 1,875 km.

The second flight, she traveled for 4.25 hours at a speed of 880 km/h.

[tex]\frac{880}{1} =\frac{x}{4.25}[/tex]

x = 880 * 4.25

x = 3,740.

The second flight, she traveled 3,740 km.

So, in total, she traveled 1875 + 3740 = 5,615 kilometres.

Hope this helps!

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you are riding the bus to school and you realize it is taking longer because of all the stops you are making

Answers

Answer:

Clearly, the answer is 17, because the difference in speed between a direct trip and one with the various stops of the bus is 46 hours and 6 minutes.  However, rounding to the nearest hour, it is 46 0/2 hours, or 46 hours.  Thus, accounting for the varying lack of stop signs, you can distribute the range of children and therefore extended breaks, allowing you to bring the time down to 16.  However, if you translate hours to minutes on a broken calculator you get 14.  So, the answer is 14

Brainliest??

using Pythagoras theorem, caclutale AC AB=11cm BC=4CM AC=unknown using Pythagoras theorem, caclutale the length of AC

Answers

Answer:

11.70 cm

Solution,

AB (p) = 11 cm

BC (b) = 4 cm

AC (h) = ?

now,

Using the Pythagoras theorem:

[tex] {h}^{2} = {p}^{2} + {b}^{2} [/tex]

[tex] {h}^{2} = {(11)}^{2} + {(4)}^{2} [/tex]

[tex] {h }^{2} = 121 + 16[/tex]

[tex] {h }^{2} = 137[/tex]

[tex]h = \sqrt{137} [/tex]

[tex]h = 11.70 \: cm[/tex]

Hope this helps...

Good luck on your assignment..

Linear Equations HELP ASAP

Answers

Answer: D) y = -1/4x + 6

Step-by-step explanation:

First turn the equation into slope-intercept form: y = 4x + 6

For a line to be perpendicular to another line, it's slope must be the opposite reciprocal of the other perpendicular line.  Thus, the slope of the perpendicular line is -1/4.  As the y-intercept of the line is (0,6), the lines must intersect as (0,6).  Thus, the other line must also have a y-intercept of 6.  Thus, the answer is D.

Hope this helps <3

need help with this question, i dont think its hard for you.​

Answers

Since there’s a dash on two of the sides, that means they equal in length.

So I just did 2(3x+5) since theres 2 sides the same. Since we know what the equations are for all three sides, we add them together and set it equal to 97. Then we solve for x. Look at my picture for the work.

As you can see, we get x= 9
The question is looking for the base so you plug in 9 into the base. 3(9)+5 which we get 32.

Final answer: 32cm

Please let me know if this helped!! Or rate it the brainlist

work out the perimeter of this semicircle take pie to be 3.142 radius in image attached thanks (:

Answers

Answer:

[tex]\boxed{P = 56.55751919 cm}[/tex]

Step-by-step explanation:

Perimeter of semicircle = [tex]\frac{2\pi r}{2} + 2r[/tex]

Where r = 11 cm

=> P = [tex]\frac{2(3.142)(11)}{2} + 2(11)[/tex]

=> P = [tex]34.55 + 22[/tex]

=> P = 56.55751919 cm

Answer:

56.562 cm

Solution,

Radius(R)= 11 cm

Perimeter of semi-circle:

[tex]\pi \: r + 2r [/tex]

[tex] = 3.142 \times 11 + 2 \times 11[/tex]

[tex] = 34.562 + 22[/tex]

[tex]56.562 \: cm[/tex]

Hope this helps...

Good luck on your assignment..

what are the points of intersection of -x^2+9x-3 and y=3x

Answers

Answer:

Easiest and fastest way is to graph both equations into a graphing calc and trace the graph to where they intersect.

Alternatively, you can use substitution to solve for your answer.

Step-by-step explanation:

A professional football prospect runs 40 yards dash in 5 seconds. What is the player's average speed over this distance

Answers

Answer:

average speed = 8y/s

Step-by-step explanation:

What is the player's average speed over this distance ?

Formula

s = d/t

d = 40 yards

t = 5 seconds

s = 40y/5s

= 8y/s


Which translation maps the graph of the function f(x) = x2 onto the function g(x) = x2 + 2x + 6?
left 1 unit, up 5 units
right 1 unit, up 5 units
left 2 units, up 2 units
right 2 units, up 2 units

Answers

Answer:

left 1 unit, up 5 units

Step-by-step explanation:

First factor

g(x)=x^2+2x+6 = (x+1)^2+5

The standard transformation formula is

g(x) = a*f(bx-h) + k

which means

a=1, b=1,h=-1, k=5

or

h=-1 means translate left one unit

k=5 means translate up 5 units.  

Choose the first option: left 1 unit, up 5 units

Answer:

A

Step-by-step explanation:

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food would have been cooked by justine change into active voice NEED ASAP!!! 20 POINTS!!! How does this illustration demonstrate nonverbal communication? What messages are being communicated? The diagram shows three angles at point. Work out the value of x Write the slope-intercept form (y=mx + b) of the blue line. Explain or show your work. Write a one sentence summary comparing the blue line to the black line. Hint: Find the y-intercept. Then count up and over (y/x) to the next point on the line to determine the slope. What is the slope of the function, represented by the table of values below? ASAP! Please write a couple of sentences identifying the following women and telling what they have in common. Indira Gandhi, Benazir Bhutto, Corazon Aquino, Golda Meir What is measured by the reaction rate? the probability that a reaction will occur the speed at which products form the time required for a reaction to go to completion is working out good or bad for your health Please help me the venn diagram is wrong too im confused on how to do this :((( 2/3a= -15 - a Please Explain PM is the median of trapezoid KLNO. If ON= 30 centimeters and KL= 20 centimeters, which is the length of PM?A. 22cmB. 25cmC. 26cmD. 28cm from which country india buy aircraft which was named as INS Vikramaditya? *ANSWER PLS TY!* The radius of a salad bowl is 11.4 inches. What is the surface area of the bowl? (Assume the bowl is half a sphere). a.) 1633.13 in2 b.) 408.28 in2 c.) 204.14 in2 d.) 816.56 in2 Find the gradient of the line y - x = 2Q.3 Which sentence contains a comma splice? Select one: a. I am going to visit my cousin after school, and then I'm going to the library. b. Whenever I need help, my friend Mia always volunteers. c. After I finish my chores, I am going to take a nap. d. I'm going to take the garbage out, it smells! Tensile strength tests were carried out on two different grades of wire rod, resulting in the accompanying data.Grade Sample Size sample mean(kg/mm^2) Sample SAISI 1064 m = 126 x = 102.8 s1 = 1.2AISI 1078 n = 126 y = 121.3 s2 = 2.0a. Does the data provide compelling evidence for concluding that true average strength for the 1078 grade exceeds that for the 1064 grade by more than 10 kg/mm^2. b. Test the appropriate hypotheses using the P-value approach.c. Calculate the test statistic and p-value.d. State the conclusion in the problem context. Which points are coplanar? Find the missing length to the attached triangle. The population of Oregon is about 4,000,000 what is the order of magnitude of this number? A) 6 B) 4 C) 3 D) 7 The learning curve is:_______ a. Really no different from a marginal cost curve. b. Calculates average cost at a particular point in time. c. Shows the decrease in unit cost as more of the same product is produced over time. d. None of the above.