To determine the number of hours it takes for sally to paint one house, we use relations from the problem statement above. We use the concept of rates and ratios. For Tom, he would take 10 hrs to finish one house. So, we assign his rate as 1/10. For Sally, she would take x hours to finish one house. So, we assign 1/x. When both of them works, it would take only 4 hours. So, we write the rate as 1/4. It should be that the sum of the individual rates is equal to the rate when both are working.
1/10 + 1/x = 1/4
Solve for x,
x = 6.67 hours
The answer is 145. I used the other angles as a triangle; I forgot what the theory is called for the easier way. I found out the complementary angle from subtracting <1 from 180. Then I added the new angle and <2 this gives me <4. It would be easier to explain if I remembered what the theory was called. Sorry and hope this helps; this is the answer bye.
5.637 x 10^3 that’s all iv got
Answer:
$6.96
Step-by-step explanation:
0.25 pound = $1.74
for 1 pound multiply by 4, since there are four 0.25 (quarters) to 1 pound.
1.74*4 = 6.96
