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3 years ago

Hi what is the answer

Mathematics

2 answers:

saveliy_v [14]3 years ago

5 0

Answer:

y = 5x

y = 60 when x =12

Step-by-step explanation:

Directly proportional means

y = kx where k is the constant of proportionality

We know y and k so we can find k

30 = k*6

Divide each side by 6

30/6 = 6k/6

5 =k

The equation is

y = 5x

We can find y when x=12

y = 5*12

y = 60

elena-s [515]3 years ago

4 0

Answer:

a) y = 5x

b) y = 60

Step-by-step explanation:

We can see that when you multiply x by 5, you get the y value.

So, 12*5 = 60.

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