Answer:
Step-by-step explanation:
s= shirts
j= jeans
4s + 2j = 72
5s + 3j = 99
10s + 6j = 198
-12s - 6j = -216
-2s = -18
s = $9
4(9) + 2j = 72
36 + 2j = 72
2j = 36
j = $18
Answer: $777.60
Step-by-step explanation:
8/100 = 0.08
0.08 * 720 = 57.6
57.6 + 720 = 777.6
To compute for the Derricks new balance:
New balance= previous balance + interest of previous balance-payment +new transaction
where
previous balance = 3264.75
interest of previous balance = 3264.75x(APR/12)=35.91225
APR=13.2%/12, 1.1%
payment= 180
new transaction= 134
new balance = 3254.66225
Derricks new balance in his account is 3254.66225.
8(8 + X) = 16
64 + X = 16
-64 -64
X = -48