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german
3 years ago
8

A car repair bill was $210. The cost for parts was $75. The cost for labor was $45 per hour. How many hours did the repair work

take?
Mathematics
1 answer:
Fantom [35]3 years ago
6 0

Answer:

Step-by-step explanation:

45h + 75 = 210

45h = 135

h = 3 hours

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When 6 is subtracted from a square of a number the result is 5 times the number
erastova [34]

Answer:

Step-by-step explanation:

The starting number is 6

6*6=36

36-6=30

6*5=30

6 0
4 years ago
Find the area of the shaded triangle and show each step and give your answer using the correct units
Svetllana [295]
Area=26x17=442




The answer is 442
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4 years ago
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Mice21 [21]
4. 5x+6.25
5.2x+40
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3 years ago
Alleen can read 1.5 pages for every page her friend can read.Alleen's mom was very extcited and she said to alleen: "so,if your
Elan Coil [88]

Answer:

no. she can read 30

4 0
3 years ago
Use the Law of Cosines to find the missing angle. In triangle JKL, j=3in., k=4in., and l=2.89., find mJ
slega [8]
Using the law of cosine for Triangle KJL, we can write:

j^{2} = k^{2} + l^{2}-2(k)(l)cos(J)  \\  \\ 
2(k)(l)cos(J)=k^{2} + l^{2}- j^{2} \\  \\ 
cos(J)= \frac{k^{2} + l^{2}- j^{2}}{2(k)(l)}

Using the values of k,j and l, we can write:

cos(J)= \frac{ 4^{2} + (2.89)^{2} - 3^{2} }{2(4)(2.89)}  \\  \\ 
cos(J)= 0.664 \\  \\ 
J= cos^{-1}(0.664) \\  \\ 
J=48.39

Rounding to nearest integer, the measure of angle J will be 48 degrees.
So option B gives the correct answer
8 0
3 years ago
Read 2 more answers
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