Two mechanics worked on a car. The first mechanic charged $85 per hour and the second mechanic charged $80 per hour the mechanic
1 answer:
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Answer:
Step-by-step explanation:
(A)The given equations are:
and
Taking the ordered pair (3,0),
and
which is satisfied. Thus, option A (3,0) is correct.
(B) The two equations are:
and
Adding both the equations, we get
Therefore, substituting the value of x in any of the two given equations,
Hence, x=3 and y=6
(C) Let "b" represents Becky's score and "C" be Cathy's score.
Then, According to the question, we get
and
Thus, Option B is correct.
(D) The given equations are:
and
Now, substituting the value of x=y+5 in the equation, we get
Thus, option C is correct.
9514 1404 393
Answer:
- =FV(4.5%/12,30*12,-150,0)
- $113,907.92
- $54,000
- $59,907.92
Step-by-step explanation:
We have used the formula shown in Go.ogle Sheets to give the results shown. (We presume Excel has a similar function.)
The result is that the future value of the investment is $113,907.92.
The amount deposited is ($150/mo)(12 mo/yr)(30 yr) = $54,000.
The interest earned is the difference: $113,907.92 -54,000 = $59,907.92.
