Question

Rachel has half the amount of money that Melanie has.

Melanie has $12 less than 3 times the amount that Kim has.

Let k represent the amount. of money kim has.

(A) write an expression that represents the amount of money that Melanie and Kim has. (two separate expressions)

(B) if kim has $20, how much money does Melanie and Rachel have?

EXPLAIN UR WORK

Answer 1

Given↷

• Rachel has half the amount of money that Melanie has.

• Melanie has $12 less than 3 times the amount that Kim has.

To find↷

• expression that represents the amount of money that Melanie and Rachel has.

• If kim has $20, how much money does Melanie and Rachel have?

Answer↷

• Melanie: 3k - $12 & Rachel : 1.5k - $6
• Melanie: 48 & Rachel:24

Solution ↷

Let the amount of money Kim has be k then,

ATQ,

The amount of money Melanie has

• ⇢3k - $12

The amount of money Rachel has

• ⇢3k-$12/2 = 1.5k - $6

Given that,

Kim has $20,

so,

The amount of money Melanie has

• ⇢3k - $12 = 3 x $20 -$12 = $48

The amount of money Rachel has

• ⇢ 1.5k - $6 = 1.5 x $20 -$6 = $24