Answer:
(2, 6)
Step-by-step explanation:
if you meant for both of the y to be the same then this should be right
Answer:
(2,6)
Step-by-step explanation:
*this is actually elimination*
1st- Turn both of them into standard form.
y=9x-12 ---> 9x-y=12
y=3x --> 3x-y=0
--
Multiply 9x-y=12 by -1
-9x+y=-12
3x-y=0
-6x=-12
divide by 6
x=2
--
Plug 2 into the first equation
9(2)-y=12
18-y=12
Cancel out 18 by subtracting -18 to both sides
-y=-6
divide by -1
y= 6
Answer: (2,6)
In a box of chocolates, 2/5 of the chocolates are milk chocs, and the rest are plain chocs. What is the ratio milk chocolates : plain chocolates?
Answer:
[tex] \frac{2}{5} : \frac{3}{5} [/tex]
Step-by-step explanation:
[tex] \frac{2}{5} = milk \: chocolate[/tex]
They need to add up to 1 so 5-2=3 (3 will be your numerator) you need denominator won't change.
[tex] \frac{ 3}{5} = plain \: chocolate[/tex]
now we need to put it in a ratio.
[tex] \frac{2}{5} : \frac{3}{5} [/tex]
2. 3x = у у= 2х + 2 2
Answer:
Step-by-step explanation:
3x = y ------------(I)
y = 2x + 22 ---------------(II)
Substitute y = 2x + 22 in equation (I)
3x = 2x + 22 {Subtract 2x form both sides}
3x -2x = 22
x = 22
Plugin x = 22 in equation (I)
3*22 = y
y = 66
Answer:
Step-by-step explanation:
3x = y
y = 2x + 22
3x = 2x + 22
3x -2x = 22
x = 22
3x22 = y
66=y
The dimensions of a rectangular prism are n, n + 7, and n + 8. Use the formula V = ewh to write a polynomial in standard form for the volume of the prism
Answer:
n³ + 15n² + 56n
Step-by-step explanation:
The formula for the volume of a rectangular prism is V = l × w × h.
We are given the dimensions of this rectangular prism: n, n + 7, n + 8.
We can assume that these are the length, width, and height of the rectangular prism (not in any specific order).
Let's substitute these values into the formula to find the volume of the prism, written as a polynomial in standard form.
V = l × w × hV = (n) × (n + 7) × (n + 8) V = (n² + 7n) × (n + 8) V = n³ + 8n² + 7n² + 56n V = n³ + 15n² + 56nThe volume of the prism is n³ + 15n² + 56n. This is in standard form because the terms are listed in descending power order.
Your order a $1.99 drink, a $9.99 burger & fries and a $2.49 dessert at Applebee's. The tax rate is 7.5% and you plan on tipping 15%. What will the total price be?
Which of the following is NOT one of the angle measures?
I believe that 95 isn't one of the measures
Joey has 10 pairs of socks in his drawer. seven of them are white. what percent of colored socks does joey have?
I’m pretty sure it’s 30%
Answer:
30% of Joey's socks are colored.
Step-by-step explanation:
7/10 x 10
= 70/100
100-70= 30%
Adding and subtracting matrices
Question 16
Answer:
it is 16 and not 17 18 19 or 20 it is only 16
Greta has budgeted $1,500 to have a concrete patio poured in her backyard like the one shown. The cost per square foot of the concrete is $5.50. Find the cost of the patio to determine if Greta has budgeted enough money to complete the project.
Answer:
Yes the amount Greta has budgeted ($1,500) is enough to complete the project which will cost $1,443.75
Step-by-step explanation:
The amount Greta has budgeted to have a concrete patio = $1,500
The cost (per square foot) of the concrete, C/Ft² = $5.50/ft²
From the dimension of the backyard, we have;
The total area, A = The area of a rectangle + The area of a trapezium
The area of the rectangle = 6 ft. × 28 ft. = 168 ft.²
The area of the trapezium = (8 ft. + (28 ft. - 15 ft.))/2 × (15 ft. - 6 ft.) = ((8 ft. + 13 ft.)/2) × 9 ft. = 94.5 ft.²
The total area, A = 168 ft.² + 94.5 ft.² = 262.5 ft.²
The total cost of the concrete, C = A × C/Ft²
∴ C = 262.5 ft.² × $5.50/ft² = $1,443.75
Therefore, given that Greta budgeted $1,500 for the project which is more than the $1,443.75 required, Greta has budgeted enough money to complete the project
A party hat has a diameter of 18 centimeter and a height of 25 centimeter. Find the volume of air it can occupy.
Answer:
2120.58 centimeters³
Explanation:
First divide the diameter by 2 to get 9. The volume of a cone is 1/3*π*r²*h so 1/3*π*9²*25
This equals 2120.59 cm³ (cubed)
ASAP!!!!!! what is the common denominator for 1/8 7/18 I NEED HELP!!1
Answer:
72
Step-by-step explanation:
1/8 and 7/18 common denominator
The expression 3 (x-9) equivalent to
3 (x-9)
Answer:
3x-27
Step-by-step explanation:
3(x-9)
3x-3X9
3x-27
Answer:
D.... hope this helps
Step-by-step explanation:
The value v of your quarters in cents) is a function of n, the number of quarters you have.
a. Give 2 input-output pairs that represent this function.
b. Write an equation that represents this function.
c. Find the output when the input is 10.
d. Identify the independent and dependent variables.
Answer:
a) (2, 0.5) (4, 1)
b) V(n) = 0.25n
c) $2.50
d) # quarters = independent
value = dependent
Step-by-step explanation:
The independent value is the number of quarters and the dependent variable is the value of cents and the equation that represents this function is,
[tex]v(n)=25\times n\rm \;\;cents[/tex]
How to write algebraic expression?Algebraic expression are the expression which consist the variables, coefficients of variables and constants.
The algebraic expression are used to represent the general problem in the mathematical way to solve them.
Steps to write down the simple algebraic expression-
Identify all the factors of the expression.Assume a variable for the changing values.Put a coefficient for the variable, if there is any rate of change of variable.Use constant numbers for the fixed values.a. Give 2 input-output pairs that represent this function.
There is total 25 cent is 1 quarter. Thus, when if there are 2 quarters, then the value of cent is 50 and when there are 4 quarters, then the value of cents is 100 cents.
Hence, the two pairs should be as,
(2, 50), (4, 100)
b. Write an equation that represents this function.As, v is the value of quarters in cents. There is total 25 cent is 1 quarter. The total quarter is n. Thus, the function can be given as,
[tex]v(n)=25\times n\rm \;\;cents[/tex]
c. Find the output when the input is 10.Put the value 10 on the place of n in the above equation as,
[tex]v(10)=25\times (10)\\v(10)=250\rm cents[/tex]
The output when the input is 10 is 250 cents.
d. Identify the independent and dependent variables.The independent value is the number of quarters and the dependent variable is the value of cents.
Hence, the independent value is the number of quarters and the dependent variable is the value of cents and the equation that represents this function is,
[tex]v(n)=25\times n\rm \;\;cents[/tex]
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The vertices of a triangle are A (4,-2), B(4,-4), C(12, -4). If the triangle is dilated by a scale factor of 1/4 what will be the coordinates of C'?
Answer:
(3, -1)
Step-by-step explanation:
12×1/4=3
-4×1/4=-1
The coordinates of C' after dilation with a scale factor of 1/4 are (7, -3).
To find the coordinates of C' after dilation, we need to apply the scale factor to the original coordinates of C (12, -4). Since the triangle is dilated with respect to the origin, we can calculate the new coordinates by simply multiplying the original coordinates by the scale factor, which is 1/4.
C' coordinates: (12 * 1/4, -4 * 1/4) = (3, -1)
However, since the triangle is not dilated with respect to the origin, we need to adjust the coordinates according to the translation of the dilation center. In this case, the dilation center is at vertex A (4, -2).
Translation vector: (4 - 0, -2 - 0) = (4, -2)
Final coordinates of C': (3 + 4, -1 - 2) = (7, -3)
So, the coordinates of C' after the dilation are (7, -3).
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2(x + y + z) ???????
Answer:
2x + 2y + 2z
Step-by-step explanation:
Write the linear equation in slope-intercept from the information given.
Point (2, -4)
Slope = -3
(A) y=−3x−2
(B) y=−3x+2
(C) y=1/3x−6
(D) y=1/3x+6
Answer:
B) y = -3x+2
Step-by-step explanation:
plug (2,-4) and -3 into y = mx + b to find 'b'
-4 = -3(2) + b
b = -4+6 = 2
Abertura formada por dos
semi-rectas con un mismo
origen llamado vértice.
w
Z
1. Which of the following terms best
describes the relationship between
Zw and 2X?
A corresponding angles
B same-side interior angles
C alternate interior angles
Answer:
b
Step-by-step explanation:
Please help it’s just one question <3
Kirby middle school some students or survey to see which social media app they use the most the results are shown below solver and explain how to calculate and what percent of students to snap the most
Answer: 44%
Step-by-step explanation:
First add up the number of students using each app the most to find out the total number of students surveyed:
= 8 + 22 + 20
= 50 students
To find out the percent of students using Snap, multiply the proportion of those using Snap the most out of the total number of students surveyed by 100%.
= 22/50 * 100%
= 44%
Help!
Please show work
Answer:
131°
Step-by-step explanation:
to find the total degrees of this polygon, we use the equation
=> n - 2 × 180° (n= number of sides)
5 - 2 × 180° = 540°
now by using angle sum property,
540° = 80° + 148° + 81° + 100° + [tex]x[/tex]°
540° = 409° + [tex]x[/tex]°
[tex]x[/tex]° = 540° - 409°
[tex]x[/tex]° = 131°
The lengths of the sides of a triangle are 9, 12, and 14. Classify the triangle as acute, right, or obtuse.
Answer:
Step-by-step explanation: sleep
The triangle with sides 9 , 12 and 14 is an acute triangle
What is a Triangle?
A triangle is a plane figure or polygon with three sides and three angles.
A Triangle has three vertices and the sum of the interior angles add up to 180°
Let the Triangle be ΔABC , such that
∠A + ∠B + ∠C = 180°
For a right angle triangle
From the Pythagoras Theorem , The hypotenuse² = base² + height²
Given data ,
Let the Triangle be ΔABC
Let the three sides of the Triangle be
First side = AB
Second side = BC
Third side = CA
Now , the three sides are having lengths as
AB = 9
BC = 12
CA = 14
Now , from the Pythagoras Theorem ,
If , base² + height² = hypotenuse² , it is a right angled triangle
If , base² + height² > hypotenuse² , it is a acute angled triangle
If , base² + height² < hypotenuse² , it is a obtuse angled triangle
So , substituting the values , we get
AB² + BC² > AC²
So ,
9² + 12² > 14²
81 + 144 > 196
225 > 196
Therefore , the triangle ABC is an acute angled triangle
Hence , The triangle with sides 9 , 12 and 14 is an acute triangle
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Mr. Hodges wants to build a fence around his entire rectangular garden.What is the total distance around the garden/
Answer:
32units square
Step-by-step explanation:
Perimeter of the garden is equal to the total distance around the garden
Perimeter of the garden =2(Length+Width)
Let assume the following
Length = 10cm
Width = 6cm
Perimeter =2(10+6)
Perimeter = 2(16)
perimeter = 32units
Hence the total distance around the garden is 32units square
Answer:
96 feet
Step-by-step explanation: took quiz pls mark brainliest
Allison, Buck, Chantal, and Doug compete in a 40-yard dash.
How many ways can the 4 competitors finish in 1st, 2nd, 3rd, and 4th place?
x + y = 30
2x + 4y = 84
Substitution
or
Elimination
I
Answer:
(X,Y)(18,12)
Step-by-step explanation:
x + y = 30
2x + 4y = 84
___________
2x+2y=60
2x+4y=84
_________
-2y=-24/-2y
y=12
2x+4(12)=84
2x+48=84
2x=84-48
2x/2=36/2
X=18
how do you make chicken i want to know
Answer:
by frying it duh
Step-by-step explanation:
Answer:
they are born from taking fermented eggs and heating them up in a incubater
i would know i actualy have chickens oh and it has to be a chicken egg Step-by-step explanation:
|x+3| x>5
now can you plz just give the answer
Answer: I would love to help you but I am confused on what you mean by the question.
Step-by-step explanation:
Which of the following expressions has a value of 3? Select all that apply.
o 6 = -2
4- (-1)
(-1)(-3)
(-2) - 1
O 15 = -5
o 4+1
Answer:
1) -6/-2
3) (-1)(-3)
5 numbers :
mode = n median= n+1 mean = n+2 Range = n+3
find 2 sets of numbers
Answer:
3,3,4,6,6
4,4,5,6,7
5,5,6,6,8
Step-by-step explanation:
mode = n
median= n+1
mean = n+2
Range = n+3
let sets:
a,b,c,d,e
mode = n, at least two of them are the same and equal to n
n,n,c,d,e
median belong to the set, in ascending order:
n,n,n+1,d,e
which means d,e ≥ n+1, d≠e
mean is n+2
5(n+2)=n+n+n+1+d+e
2n+9=d+e
Assume e is the maximum:
Range is n+3:
e-n=n+3
e=2n+3
d=6≥n+1
n≤5,
Set is n,n,n+1,6,n+3
n+1≤6≤n+3
3≤n≤5
3,3,4,6,6 bimodal
4,4,5,6,7
5,5,6,6,8 bimodal
Please help ! This is due today .
Answer:
Step-by-step explanation:
1) because there are 10 total boxes in box 1 and they want 2/5 of them color in 4 boxes to make 4/10 which can reduce to 2/5
2) they say make it unlikey that a blue box will be picked.. so color in one box
3) now don't color any of the boxes.. so no matter which boxes is picked.. there isn't any blue ones. :)
Find uw if vw= 5/8 in
Answer:
4/8, which reduced is 1/2. Final answer!
Step-by-step explanation:
IF RIGHT PLZ GIVE BRAINLIEST
THANK U
HAVE A GREAT DAY AND BE SADE :)
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