martin2003
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PLEASE HELP ME!! I HAVE TO WRITE EXPRESSIONS FOR THESE PROBLEMS BUT I DO NOT KNOW HOW TO....

Writing Expressions. Write expressions to describe each situation. Do NOT solve.

a) Lenny budgeted $55 to buy lunch for the next 7 days. If he buys a soda each day for $1.75, how much of his budget does he have left?


b) Mandy makes a monthly mortgage payment of $850. If she budgeted $11,000 of her salary for mortgage payments this year, what amount of this budget will remain after 12 months?

c) Tim is washing his car. He has $8.45 in his pocket when he starts washing his car. If he spends 18 quarters to wash his car, how much money does he have left?

Respuesta :

a) The initial value is $55. Lenny bought a soda on each day for a week. so,
$55-1.75(7)=x 
b) $11,000-850(12). $11,000 is the initial value and it costs $850 each month. Mandy pays for 12 months. So we multiply the cost of one month by 12 and subtract that cost from the total amount of money.
c)$8.45-0.25(18)

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