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10 months ago

I'm so d*mb‍ i need help i got the answer but i need help with the formulas and showing my work to get the answer

Mathematics

1 answer:

bazaltina [42]10 months ago

5 0

Answer:youre not dum :)

Step-by-step explanation: e

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Caroline needs to find 15% of $128, but she doesn’t have a calculator. Thoroughly Explain how she can do this mentally, detailin

Solnce55 [7]

So multiply 128 by 15 to get 1920 and then move the decimal over two places to get 19.20 and then subtract that $19.20 from $128 to get $108.8

3 0

3 years ago

Solve for x: 7x = 63

elena55 [62]

Answer:

x = 9

Step-by-step explanation:

7x = 63

Divide each side by 7 to isolate x

7x/7 = 63/7

x = 9

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3 years ago

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If x=7 and y=−2, evaluate the following expression:2xy

antoniya [11.8K]

Answer:

-28

Step-by-step explanation:

2xy=2(7)(-2)=14(-2)=-28

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2 years ago

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A school gymnasium is being remodeled. The basketball court will be similar to an NCAA basketball court, which has a length of 9

valkas [14]

Answer:

Perimeter of NCAA court=288 feet

Perimeter of new court=259.2 feet

Step-by-step explanation:

We are given that

Length of NCAA court, l=94 feet

Width of NCAA court, b=50 feet

Width of new court, b'=45 feet

We have to find the perimeter of an NCAA court and new court in the school.

Perimeter of NCAA court= $2(l+b)$

Perimeter of NCAA court= $2(94+50)$ feet

Perimeter of NCAA court=288 feet

When two rectangles are similar then the ration of their corresponding sides are equal.

Using the property

$\frac{Perimeter\;of\;NCAA\;court}{Perimeter\;of\;new\;court}=\frac{Width\;of\;NCAA\;court}{Width\;of\;new\;court}$

$\frac{288}{Perimeter\;of\;new\;court}=\frac{50}{45}$

Perimeter of new court= $\frac{288\times 45}{50}$ feet

Perimeter of new court=259.2 feet

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2 years ago

What is the length of the mural

salantis [7]

Answer:

23? mabey

Step-by-step explanation:

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4 0

3 years ago