Respuesta :
Answer:
The correct answer is 3 quarters for Tony; 6 quarters for Jane; 12 quarters for Rob.
Step-by-step explanation:
Tony has x quarters.
Jane has three more quarters than Tony.
∴ Jane has x + 3 quarters.
Rob has twice as many quarters as Jane.
∴ Rob has 2 × ( x + 3 ) quarters.
Together, Rob and Jane have $4.50 in quarters.
And we know that $1 is 4 quarters.
∴ $4.50 is ( 4 × 4.5 ) quarters = 18 quarters.
Thus we can form the equation as
2 × ( x + 3 ) + ( x + 3 ) = 18
⇒ 2x + 6 + x + 3 = 18
⇒ 3x = 9
⇒ x = 3.
Thus Tony has 3 quarters. Jane has 6 quarters. Rob has 12 quarters.
Answer:
x+3 2(x+3) Tony has 3
Step-by-step explanation:
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