Question

Question 14Anthony has a total of $4.20 in nickels, dimes and quarters. If hehas 6 more dimes than nickels and three times as many quartersas nickels, how many of each kind of coin does he have?2 pointsYour answerAQuestion 15Mrs. Bee is six years older than four times her son's age. Threeyears ago, she was seven times as old as her son was then. Findtheir present ages.

Answer 1

`\begin{gathered} Let^(\prime)\text{s son age is}\Rightarrow s=\text{ x} \\ Bee\text{ age is}\Rightarrow\text{ B=4x+6} \\ \text{thre}e\text{ years ago} \\ \text{Son age }\Rightarrow x-3 \\ Bee\text{ age}\Rightarrow4x+3 \\ So,\text{ equation is} \\ 4x+3=7(x-3) \\ 4x+3=7x-21 \\ 7x-4x=21+3 \\ 3x=24 \\ x=8\text{ (Son present age)} \\ Bee\text{ age}\Rightarrow4x+6=4*8+6=38\text{ (B}ee\text{ present age} \end{gathered}`