Question

The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached, the spring stretches 9 centimeters. Which equation relates the mass of the object, m, and the length of the spring, s?

s = StartFraction 3 Over 10 EndFraction m
s = StartFraction 10 Over 3 EndFraction m
m = StartFraction 3 Over 10 EndFraction s
m = StartFraction 1 Over 30 EndFraction s

Answer 1

Answer:

Let us assume the number as 'x'

91-(*x) = x

91-(3x/10)=x

x-91=-3x/10

x =  

10x = -3x+910

13x = 910

x = 910/13

= 70

Therefore x = 70

Step-by-step explanation:

Answer 2

Answer:

spring dimensions

m

s

M1

S1

_4567+78098+(56-+)78