Question

8th grade math please help

Answer 1

Answer:
`\bold{a)\quad E=(1)/(5)s}`

b) 75

c) $24

Explanation:

the difference in the y-values (electricity) divided by the difference in the x-values (students) is the rate of change.
`(10)/(50)=\large\boxed{(1)/(5)}`

Electricity = rate of change × students ⇒
`E=(1)/(5)s`

b) Find s when E = 15

`15=(1)/(5)s\\\\\\(5)15=(5)(1)/(5)s\\\\\\\large\boxed{75 = s}`

c) Find E when s = 120

`E=(1)/(5)* 120\\\\\\E=(120)/(5)\\\\\\\large\boxed{E=24}`