Question 1066327
Using the substitution method:
d+q = 25 subtract d from both sides:
q = 25-d
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0.10d+0.25q = 5.95 substitute for q:
0.10d+0.25(25-d) = 5.95
0.10d-0.25d+6.25 = 5.95
-0.15d = -0.30 divide both sides by -0.15 and remember -/- = +
d = 2 You have 2 dimes
q = 25-d = 25-2 = 23
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check:
0.25(23) = 5.75
0.10(2) = 0.20
Total . . .5.95 Correct