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3 years ago

I don’t understand what Is the answer since I’m not good with percentages

Mathematics

1 answer:

TiliK225 [7]3 years ago

4 0

Answer:

9 students

75 percent of 12 = 9

Search for calculator. Type, "75" then click the percent symbol, then type "12." It should give you the right answer.

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A handyman buys lumber to fix a fence. The lumber is $562 before his 20% discount. There is 6% sales tax on his purchase, but hi

kari74 [83]

Should be 445.10. I just took the percentages of all out of 562 and added and subtracted as necessary.

4 0

2 years ago

Problem

mixas84 [53]

Answer:

2(L*w) + 2(L*h) + 2(w*h)

Step-by-step explanation:

height = h

width = w

length = l

To find two sides you multiply to values then multiply by two, and repeat until each value is combined.

2(L*w)

2(L*h)

2(w*h)

Then add together.

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3 years ago

Answer to letter B , C, D

Feliz [49]

Answer:

See below.

Step-by-step explanation:

Our expression given: 3(x-6) + 2y

A. Substitute x = -7 and y = 10 into the equation.

$3( - 7 - 6) + 2(10)$

Use the Distributive Property:

$- 21 - 18 + 20$

Solve:

$- 19$

B. Substitute x = 5 and y = -2 into the equation.

$3(5 - 6) + 2( - 2)$

Use the Distributive Property:

$15 - 18 + -4$

Solve:

$-7$

C. Substitute x = 0 and y = 6 into the equation.

$3(0 - 6) + 2(6)$

Use the Distributive Property:

$- 18 + 12$

Solve:

$-6$

D. Substitute x = 3 and y = 3 into the equation.

$3(3 - 6) + 2(3)$

Use the Distributive Property:

$9 - 18 + 6$

Solve:

$-3$

8 0

2 years ago

3(2b+4)=6(5b+2) please step by step

Lena [83]

A b=0 Subtract 12 from both sides 6b+12-12=30b+12-12

3 0

3 years ago

Which value for x would make the perimeter of this rectangle equal 48 inches

RSB [31]

Answer:

L = 16; W=8: are the correct values.

Step-by-step explanation:

Start off with 2 math statements:

First, for the perimeter: 2W x 2L = 48

Then, for the area: W x L = 128

Next, we want to take the 2nd equation; then solve it for "W"

W x L = 128

Divide out both sides by "L", to get the "W" equals:

W = 128/L

Next, go back to the first equation. Where it indicates "W", put in the value of: 128/L in its place; to get:

2L + 2*(128/L) = 48; which gives us:

2L + 256/L = 48

Multiply everything by "L", to get:

2L2 + 256 = 48L

Next, divide out everything by 2, to get:

L2 + 128 = 24L

Next, move the 24L over to the left, to get:

L2 - 24L + 128 = 0

(L-16)* (L-8) = 0

L-16 = 0; L-8 = 0

Which gives us: L=16; L=8

Let's go with the L=16 first; back into the original equation:

f(16) = 2*16 + 2W = 48

32 + 2W = 48

-=32 -32

2W = 16

Divide out both sides by 2, to get:

W = 8

Next, test our values, by plugging them back into both original equations:

2*16 + 2*8 = 48

32 + 16 = 48 [Check]

L x W = 128

16 * 8 = 128

128 = 128 [Check]

5 0

2 years ago