Answer:
D) 7.01
Step-by-step explanation:
The rates of doing work, in terms of jobs per hour, will add when the two painters are working together. If A represents Alberto's time to do the job alone, we have ...
1/4.12 = 1/10 + 1/A
(Jobs per hour is the inverse of hours per job.)
A = 1/(1/4.12 -1/10) ≈ 7.0068 ≈ 7.01
It takes Alberto 7.01 hours to do the job alone.
7 1/4 - 5 3/4= 1 1/2 because you can either 1) change it into decimals: 7.25-5.75 and do simple subtraction or... 2) u can change the 7 to a 6 and add 4 to the numerator of 1/4 making the equation 6 5/4 - 5 3/4 = 1 2/4 which simplified to 1 1/2 I hope I didn’t confuse you! :))
Answer:
X= 70 degrees
Step-by-step explanation:
<u>Answer: </u>
option (B) $61,422
<u>Explanation:</u>
Given the annual salary is $70,600
Percent of Contribution made from the income = 13%
Pretax Salary/Income is calculated by the formula, Salary – 13% of salary
Pretax income =
= 70600 – 9178 = 61422
Therefore whitney’s pretax income is $ 61422
Hence, option (B) is correct
Answer: x=1/2,-2
not sure if that is what you need
Step-by-step explanation:
