3 years ago

Evaluate the expression when c=8 and d=7. 4d-c whats the answer?

Mathematics

1 answer:

11111nata11111 [884]3 years ago

8 0

Answer:

The answer is 20.

Step-by-step explanation:

4(d) - c

4(7) - c

28 - c

28 - 8

20 is the answer.

I hope this helps, have a nice day.

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What x-value makes the set of ratios equivalent? Tiles 2 : 3 = 6 : x ,4 : 7 = x : 42 , 2x : 48 = 3 : 12, 12 : 15 = x : 20

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Step-by-step explanation:

2 : 3 = 6 : x ,

Ratio can be written as

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\frac{3}{12}[/tex] = $\frac{2x}{48}12*4 = 48, we multiply top and bottom of fraction by 4[tex]\frac{3*4}{12*4} = \frac{12}{48}$

2x= 12, so x= 6

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$\frac{12}{15} = \frac{x}{20}$

$15 * \frac{4}{3} = 20$ ,

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