Answer:
Step-by-step explanation:
(m+5)(m-5)
m(m-5)+5(m-5)
m^2-5m+5m-25 (-5m and + 5m gets cancel)
m^2-25
m^2-5^2
A first alloy contains x pounds of 55% silver. It is mixed with a second alloy containing 30% silver to make 60 pounds of an alloy containing 40% silver. Of the answers listed below, the one closest to the correct value of x is
Answer:
"24 pounds" is the appropriate answer.
Step-by-step explanation:
According to the question, the equation will be:
⇒ [tex]x+y=60[/tex]...(equation 1)
or,
⇒ [tex]\frac{55}{100}x+\frac{30}{100}y=\frac{40}{100}\times 60[/tex]
[tex]55x+30y=2400[/tex]...(equation 2)
Now,
By multiplying (equation 1) by 55 and (equation 2) by 1, we get
⇒ [tex]55x+55y=3300[/tex]...(equation 3)
⇒ [tex]55x+30y=2400[/tex]...(equation 4)
From equation 3 and 4, we get
⇒ [tex]25y=900[/tex]
[tex]y=\frac{900}{25}[/tex]
[tex]=36[/tex]
By putting the values of "y" in equation 1, we get
⇒ [tex]x=60-36[/tex]
[tex]=24[/tex]
Thus the value of x be "24 pounds".
Please answer quick Please
Answer:
n^3-4n^2+5
Step-by-step explanation:
Trey's chocolate bar is 54% cocoa. If the weight of the chocolate bar is 73 grams, how many grams of cocoa does it contain? Round your answer to the nearest
tenth
The mass of cocoa contained in a chocolate bar of mass 73 grams is: (73 x 54) / 100 = 39.42 grams
the area of the polygon is 27 mi 2 what is the formula that shows the length of side a
Answer:
option 1
Step-by-step explanation:
the polygon is made up of three squares
the area of the polygon is the sum of the area of the three squares
Area of a square = length²
a²
Area of the polygon = a² + a² + a² = 3a²
3a² = 27
a² = 27/3
a² = 9
a = 3
the radius of a circle is 9 centimeters . What is the circumstance?
Answer:
C = 18 pi cm or approximately 56.52 cm
Step-by-step explanation:
The circumference is given by
C = 2* pi*r
C = 2 * pi*9
C = 18 pi
Using 3.14 as an approximation for pi
C = 18*3.14
C =56.52
Answer: 56.52
Step-by-step explanation:
In order to find the circumstance, we will need to use this formula:
2πr
(2)(3.14)(9)
6.28 x 9
= 56.52 cm
The attendances y for two movies can be modeled by the following equations, where x is the number of days since the movies opened.
y=-x^2+35x+100 Movie A
y=-5x+275 Movie B
When is the attendance for each movie the same?
After ___ days and after ___ days.
Answer:
After
days and after
days.
By solving a quadratic equation, we will see that the attendance will be the same after 5 days and after 35 days.
When is the attendance for each movie the same?
This will happen for the values of x such that:
y = -x^2 +35x + 100 = y = -5x+275
There says that the attendance for movie A is the same as the one for movie B. So we just need to solve that.
We can write the equation as:
-x^2 +35x + 100 = -5x+275
If we simplify this, we get:
-x^2 + 35x + 100 + 5x - 275 = 0
-x^2 + 40x - 175 = 0
This is a quadratic equation, the two solutions are given by Bhaskara's formula, we will get:
[tex]x = \frac{-40 \pm \sqrt{(40ft)^2 - 4*(-1)*-175)} }{2*-1} \\\\x = \frac{-40 \pm 30}{-2}[/tex]
So the two solutions are:
x = (-40 + 30)/-2 = 5
x = (-40 - 30)/-2 = 35
So, the attendance will be the same after 5 days and after 35 days.
If you want to learn more about quadratic equations, you can read:
https://brainly.com/question/1214333
I need help answering this question
Two pound bags of candy are being used to fill containers that hold 1 1/2 pounds each. How many containers can be filled by each two pound bag of candy?
Answer:
4 Containers Can Be Filled By Each Two Pound Bag Of Candy .
Step-by-step explanation:
GIven Two Pound Bag Of Candy Used To Fill Container That hold [tex]1\frac{1}{2}[/tex] Pound Each .
Now There are 4 Container of Capacity [tex]1\frac{1}{2}[/tex] Pound Needed To fill Exactly 3 two Pound Bags .
Thus 4 container have Total capacity Of 6 Pound . Which Is Easily Filled By The 3 two Pound Bags . ( Without Any Loss )
Write the equation of the line which contains all images of point C.
(12,1)
С
(8,0)
B
2.
10
12
14
AA
(a,b)
А.
y-te-2
B
y = 4x - 2
C
1
y = 4x
D
1
1
y
C
4
Answer:
Step-by-step explanation:
Put a check by all the prime numbers.
A)3
B)5
C)21
D)15
E)11
F)10
Answer: 3, 5, and 11
Step-by-step explanation: a prime number is a number greater than 1 that is not a product of two smaller natural numbers.
CAN SOMEONE HELP ME WITH THIS, PLEASE AND THANK YOU
Answer:
63 were sold
Step-by-step explanation:
Multiply the total number of new houses by the fraction that were sold
81 * 7/9
Rewriting
81 /9 * 7
9 * 7
63
Answer:
63 new house have been sold this year.
Step-by-step explanation:
New houses have been sold this year is given by
= Total no. of new houses × fraction that were sold.➛ 81 × 7/9
➛ 9 × 7 .. ( 81 / 9 = 9 )
➛ 63
find the value of x and y
Step-by-step explanation:
(18x-44) is x and the answer is: -792
and (13 y -38) you would have to Remove the parentheses.
alegebraic expression of x and 2 is
Answer:
x+2
Step-by-step explanation:
x and 2
And means add
x+2
Please help for geometry final!!
Answer:
∠1 = 180° - 123° = 57°
∠2 = 180° - 57° - 48° = 75°
∠3 = 180° - 123° - 13° = 44°
Answer:
2
[tex]m < 1 = 180 \degree - 123\degree \\ = 57\degree[/tex]
3
[tex]m < 2 = 180\degree - 57\degree - 48\degree \\ = 75\degree[/tex]
4
[tex]m < 3 = 180\degree - 123\degree - 13\degree \\ = 44\degree[/tex]
PLEASE HELP ME!! ASAP
ANSWER EXPLANATION = BRAINLIEST & FIVE STARS
What is the value of cos Q?
Write your answer as a simplified fraction.
Explanation:
Divide the adjacent side UQ = 28 over the hypotenuse QE = 53 to form the cosine of Q. The adjacent side is the side closest to the reference angle. The hypotenuse is always opposite the right angle.
The fraction 28/53 cannot be reduced further since 28 and 53 have no factors in common other than 1.
Answer:
28/53
Step-by-step explanation:
To find the value of cos(Q), you need to divide the adjacent, 28, and the hypotenuse, 53. Dividing them results to 28/53, and simplified is, I don't think you can simplify that. This answer might not be totally correct.
Just remember in the future,
sin = opposite / hypotenusecos = adjacent / hypotenusetan = opposite / adjacentAnd you can use this link for help
https://www.mathsisfun.com/sine-cosine-tangent.html
Suppose that an individual has a body fat percentage of 12.1% and weighs 133 pounds. How many pounds of her weight is made up of fat? Round your answer
to the nearest tenth.
Answer:
1099.2 pounds
Step-by-step explanation:
Given data
Weight= 133 pounds
Percentage of far= 12.1%
Let the total fat be x
So
12.1/100*x= 133
0.121*x=133
x= 133/0.121
x= 1099.1735 pounds
x= 1099.2 pounds
IF U HELP ME ILL MARK BRAINLIEST
Simplify the expression: 8(2x+7) - 5(3x + 14)
Answer:
the Answer is x -14
Step-by-step explanation:
Jasper is painting the outside of a box, including the top and bottom. The box measures 6 feet long, 2.5 feet wide, and 3 feet high. What is the total surface area she will paint? 2.5 3 6.
I think of a number, I subtract 10 and add 2 . My answer is 20, What was my number
Answer:
x=28Step-by-step explanation:
x-10+2=20 x-8=20 x=20+8 x=28. this is my answerA snack stand serves shaved ice in cone shaped containers and cylindrical containers. Which container gives you more shaved ice for your money? Explain.
Answer:
The cone container
Step-by-step explanation:
The volume of the cone is (pi r² h)/3
3.14•4²•6/3 = 100.48 ≈ 100
The volume of the cylinder is pi r² h
3.14•4²•6 = 301.44 ≈ 301
The cone is 3.25, and have 100 in³ of volume, so:
100/3.25 = 30.77 in³ per dollar
The cylinder is 4.75 and have 301 in³ of volume, so:
301/4.75 = 63.37 in³ per dolar
So, the cone container gives you more shaved ice
True or False Variation provides information about how much the data varies within the sample.
Answer:
True
Step-by-step explanation:
The variance of data measures how much the data varies.
your awnser would be true.
I think it’s because the computer
Answer:
It's A and B
Step-by-step explanation:
Since she took 75% off of her commute time, she has 25% left. 25% as a decimal is 0.25 and 0.25 as a decimal is 1/4.
Also, since it says choose two answers, C and D are not equal to each other.
what is the value of (-5+5i)+ (4-4i)?
Answer:
Step-by-step explanation:
(-5+5i)+(4-4i)
=-5+5i+4-4i
=-1+i
A group of friends went to lunch. The bill, before sales tax and tip, was $37.50. A sales
tax of 8% was added. The group then tipped 18% on the amount after the sales tax
was added. What was the amount, in dollars, of the sales tax?
Show your work.
Answer
question continued: what was the total amount the group paid, including tax and tip?
Answer:
Sales tax=3.00, total paid=47.79
Step-by-step explanation:
37.50 x .08=3.00 sales tax
37.50+3.00=40.50 amount with sales tax added
40.50 x .18=7.29 amount of tip
40.50 + 7.29=47.79 total with tip and sales tax
Find The Missing Angle Measure
A. 34
B. 90
C. 6
D. 23
please help me with this
The sum of the 3 inside angles equal 180
To find the missing angle subtract the 2 known angles from 180.
R = 180 - 114 - 32 = 34
R = 34 degrees
Percent puzzle
- Each square contains a positive digit (1-9). Digits may be reused.
- The percent next to a row gives the percent of the row sum contained in the shaded square of that row.
- The percent above each column gives the percent of the column sum contained in the shaded square of that column.
Problem:
Solve the following percent puzzle, entering each square of the completed puzzle in the corresponding box below.
Answer:
you should probably just search it up
Solve for x. Each figure is a parallelogram.
Help please and thank you...
Answer:
4
Step-by-step explanation:
In a parallelogram, adjacent angles are supplementary
125 + 14x-1 = 180
14x - 1 = 180 - 125
14x - 1 = 55
14x = 55 + 1
14x = 56
x = 56/14
x = 4
Therefore, the value of x = 4
Hope u understand
Please mark as brainliest
Thank You
Tyrell has $30.50 to spend on computer supplies. If he buys a mouse for $6.50 and two flash drives,
Graph the inequality.
Answer: $12 for each flash drive
Step-by-step explanation: $30.50-$6.50=24
24/2=12
Meaning that are $12 each
By what number should -5/27 be divided to get -7/20?
Answer:
Step-by-step explanation: