3 years ago

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4.

2 answers:

Lilit [14]3 years ago

7 0

The answer is A) 3.
I hope this helps.

5 0

A.) 3 Because You Need To Find Out What Makes X 7.5 And Y 10 By Dividing It When You Divide 10 By 7.d You Get .75 Then Multiply 4 By .75

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rosijanka [135]

We have to simplify this as a product of fractions. Notice that the 6 has a negative sign, therefore, the result will be negative. We have then:

$-6\cdot\frac{1}{3}=-\frac{6}{1}\cdot\frac{1}{3}=-\frac{6\cdot1}{1\cdot3}=-\frac{6}{3}=-2$

therefore, the simplified result is -2

3 0

1 year ago

lina2011 [118]

Answer:

I think its C but I'm not too sure.

4 0

3 years ago

joja [24]

Answer:

Variables- x, y and z

Constants- 2 and 8

Coefficients- 3, 7, and 4

Step-by-step explanation:

Variables - The numbers we don't know/trying to find.

Constants- The numbers that remain fixed

Coefficients- The numbers in front of the variables

5 0

3 years ago

Masja [62]

What are the choices?

8 0

3 years ago

Valentin [98]

The answer is 1.

8x6=48

8x5 + 8x1 = 48

4 0

3 years ago