Adam can clean a room in 3 hours. If his sister Maria helps, they can clean it in 225 hours. How long will it take Maria to do the job alone?
2 2 = 12 Together time, 2 2 , needs to be converted to fraction 555
Adan:3,Maria:x,Total: 5 Clearlystatetimesforeachandtotal,usingxforMaria 12
1+1= 5 Usingreciprocals,addtheindividualtimesgivestotal 3 x 12
1
1(12x) + 1(12x) = 5(12x) 3 x 12
4x+12=5x −4x −4x 12=x It takes Maria 12 hours
Multiply each term by LCD of 12x
Reduce each fraction
Move variables to one side, subtracting 4x Our solution for x
Answer is - 12 hours
Answer:
The answer are:
•Brenna wants to have a career in computer-related work.
•Cody wants to manage a company's office.
Explanation:
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Answer:
D. 12%
Explanation:
300 / 5,000 =0.06 x 100 =6% Interest rate for the 6-month period.
6% x 2 =12% nominal annual interest rate - ccompounded semi-annually.
The answer is D because u really do need information on how to apply
Answer:
The Third choice- Δpqr is an equilateral triangle
Explanation:
If you put it on the graph and make the triangle on the graph. You get your answer.
