Question

Each time Miranda goes to the store she plans to spend \$7$7dollar sign, 7, and each time Savannah goes to the store she plans to spend \$9$9dollar sign, 9. A few weeks from now, Miranda and Savannah are surprised to find out that they have spent the exact same total amount of money at the store. What is the least possible number of times that Miranda has been to the store

Answer 1

9 visits

Explanation:

Given that:

Amount spent by Miranda per visit = $7

Amount spent by Savanah per visit = $9

To obtain the least number of visits by Miranda ;

We obtain the L. C. M of 7 and 9, the. Divide by the amount she spends per visit ;

Multiples of :

7 = 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77

9 = 9, 18, 27, 36, 45, 54, 63, 72, 81

Hence, lowest common multiple of 7 and 9 is 63 ;

Hence, least possible. Number of visits by Miranda is ; 63 / 7 = 9 visits