Answer :
Answer:
$7.90 left.
Step-by-step explanation:
Given:
Korina had 20 dollars to spend
She spent [tex]8\frac{7}{10}[/tex] dollars on gift A.
She spent [tex]3\frac{2}{5}[/tex] dollars on gift B.
Question asked:
How much money did she have left for gift C ?
Solution:
Korina had money =$20
Spent on gift A = [tex]8\frac{7}{10}=\frac{10\times8+7}{10} =\frac{87}{10}=\$8.7[/tex]
Spent on gift B = [tex]3\frac{2}{5}=\frac{5\times3+2}{5} =\frac{17}{5} =\$3.4[/tex]
Total money spend = $8.70 + $3.40 = $12.10
Money left for gift C = Total money, she had - Money spend on two gift
= $20 - $12.10 = $7.90
Thus, she has $7.90 left for gift C.