PLEASE ANSWER ASAP
Maggie has only dimes and quarters in her purse. She has 27 coins with a total value of $4.05. How many dimes does Maggie have in her purse? Enter your answer in the box.
4. Number of dimes= d and number of quarters=q d+q= 27 10d + 25q= 405 d= 27-q 10(27 -q) +25 q= 405 270 -10q + 25q= 405 270 + 15q= 405 15q= 135 q=9 d + q= 27 d +9=27 d=18 She has 18 dimes