MathematicalUse Number Sense Duane and Mick are savingtheir money to build a tree house. Duane adds $5 to their piggybank every other week. Mick adds $2 every week. So far they havesaved $45. How many weeks have they been saving their money?
1 answer:
Assuming they start saving at 0 dollars 45=total=duanesavings+micksavings duanesavings=confusing, I will explain mick savings =amount saves per week times number of weeks duane saves 5 dollars every other week, aka 2.5 dollars per 1 week DS=2.5w MS=2w since they save at same time and at that week, when the weeks are equal (w=w), 45 it total DS+MS=45 2.5w+2w=45 4.5w=45 divide by 4.5 both sides w=10 10 weeks
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