Tom receives allowance every week. He spends three-fourths of his allowance on food. Last week, Tom spent nine dollars on food. What is Tom’s weekly allowance? Write the verbal model, define the variable, write the equation and find the solution. Show your work.

Question

anonymous · Answer

can someone please help

anonymous · Answer

9/3=3 so his weekly allowance would be twelve dollars since 12/4=3

whpalmer4 · Answer

Let Tom's allowance be A.  3/4 of A is spent on food.  Last week, he spent $9 on food, so
$$9 = \frac{3}{4}A$$
Solve that for $A$.

anonymous · Answer

Convert 3/4 to a decimal . 100 divided by four equals 25. 25 times three equals 75. So your decimal is .75. Get a calculator and divide nine by .75 and see what you get. That will be A.

whpalmer4 · Answer

That's kind of a lengthy way to get to the answer, @emilyowl!

$$9 = \frac{3}{4}A$$Multiply both sides by 4:$$36 = 3A$$Divide both sides by 3:$$A =$$Shouldn't need a calculator...

anonymous · Answer

well i have the answer so never mind

whpalmer4 · Answer

@312856MLP ah, that's the attitude that will certainly lead to long-term success!