Working together, Katherine and Marina can sand a large cabinet in 2 hours. It would take Katherine 10 hours to do the job alone .
2 answers:
<u>Answer</u>
Option 2
The part of the job that Marina can complete in 1 hour
<u>Explanation</u>
Working together, Katherine and Marina can sand a large cabinet in 2 hours.
In hour the complete 1/2 of total work
It would take Katherine 10 hours to do the job alone.
In one hour Katherine complete 1/10 of total work
Let r, the part of the job that Marina can complete in 1 hour
So we can write,
r = 1/2 -1/10 = 0.4
The part of the job that Marina can complete in 1 hour is 0.4
Answer:
b
Step-by-step explanation:
You might be interested in
6 because 45 divides by 3 equals 15 and fifteen minus 9 equals 6, if you plug 6 into the equation it makes sense
Answer:
1232
Step-by-step explanation:
1232 6th grades went on the trip because 160p multiplied by .77, the amount of chaired covered by 6th graders, is equal to 1232.
Answer:
(x²-2x)/(2x+6)
Step-by-step explanation:
When you are asked to divide two fractions just do keep-change-flip. Keep the first fraction, change the ÷ to x and flip the second fraction upside down. So the problem becomes ((x-2)/(x+3)) times (x/2). Then just multiply numerators and multiply denominators.
2640/825=3.2
