Frequently Asked Questions...
Another Algebra Equation Questions?
I need help on these two. Solve showing work and formulas/equations or use a graph tif it will help/
20. Jack earns $15/h as a music teacher and 11$/h as a swimming aid. He works part time and at each job. In one week, he worked a total of 37 hours and earned $459. How many hours did she work at each job.
22. Beth earns $7.25/h and Jack earns $8.50/h. In a week, the worked up a combined total of 75 hours and earned a total of $585. Who earned more money that week? How much more did he earn?
Answer:
20. Let x hours be Jack as a music teacher,y hours as a
swimming aid,then
x+y=37
15x+11y=459
So, solve for x, y yourself for the answer
ans. x=13 hrs,y=24 hrs
22. like 20, let Beth work x hrs & Jack, y hrs. in a week, then
7.25x+8.5y=585
x+y=75
work out x,y first, the ans.are x=42 hrs,y=33 hrs.
Then answer your questions by means of these results.
Swim Aid
SwimFin Swimming Aid
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