D + q = 40
.10d +.25q= $7.75
d +q = 40
d =40-q
.10(40-q) +.25q= $7.75
4 - .10q + .25q =7.75
4 +.15q =7.75
4-4 +.15q =7.75-4
.15q= 3.75
.15q/.15 = 3.75/.15
q = 25
d =40-25
d = 15
Check
.10(15) +.25(25)= $7.75
1.5+6.25=7.75
7.75=7.75
Answer:
it's the first option
Step-by-step explanation:
hope that help you
Answer:
<h2>b= a/3 - 13/3</h2>
Step-by-step explanation:
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it is 4.7 because anything using 5 to round automatically bumps the number before up