S varies inversely as G if S is 5 when G is 2.8 find a when G is 7

The correct answer is (d) S = K/G and the value of S when G = 3 is 4.2

Given that, S varies inversely as G.

S ∝ 1 / G

S = K / G , here K is constant of proportionality

When G = 1.8 then S = 7, putting these values in the above equation:

 7 = K / 1.8

K = 12.6

⇒ S = 12.6 / G

Now, if G =3 then

  S = 12.6 / 3 = 4.2 is the answer.

Step-by-step explanation:

answer: 177/8

step-by-step explanation:

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt