BASEBALL BTS
BASEBALL BTS
Math help! Two questions on solving problems algebraically using two variables. Worth ten points!?
Please solve and explain the following equations. I will be studying from this.
Instructions: Solve each problem algebraically using two variables.
1. On one day, four gardeners and four helpers earned $360. On another day, workingn the same number of hours and at the same rate of pay, five gardeners and six elpers earned $480. Each gardener recieves the same py for a day's work and each helper recieves the same pay for a day's work. How much does a gardener and how much does a helper recieve each day?
2. A baseball maneger bought 4 bts and 9 balls for $76.50. On another day, she bought 3 bats and one dozen balls at the same prices and paid $81.00. How much did she pay for each bat and each ball?
1) gardeners' pay/hour= g
helpers' pay/hour= h
4g+4h=360
5g+6h=480
20g+20h=1800
-(20g+24h=1920)
-4h=-120
h=30
4g+4(30)=360
4g=240
g=60
2) bats cost= b
balls cost=o
4b+9o=76.50
3b+12o=81
12b+27o=229.5
-(12b+48o=324)
-21o=-94.5
o=4.50
4b+9(4.50)=76.50
4b=36
b=9
(expensive baseballs, by the way)
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