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Strike441 [17]
3 years ago
11

A computer repair technician charges $35 for each job plus $21 per hour of labor and 110% of the cost of parts. The total charge

for a 3-hour job was $169.50. What was the cost of parts for this job? Write and solve an equation and justify each step in the solution.
Mathematics
1 answer:
Novay_Z [31]3 years ago
7 0

Answer:

The cost of parts was $65.

Step-by-step explanation:

Let the cost of parts = x

35  + 21(3) + 1.10x = 169.50

98 + 1.10x = 169.50

71.50 = 1.10x

71.50/1.10 = 65

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BRIA is a rectangle. AN=5. NR=x-3. please solve for x, NR, and BI
Lena [83]

Answer:

x=8

NR=5 units

BI=10 units

Step-by-step explanation:

In  a rectangle BRIA

AN=5 units

NR=x-3

We have to solve for x , NR and BI.

We know that

Diagonals of rectangle bisect to each other.

BI and AR are the diagonals of rectangle BRIA and intersect at point N.

AN=NR

5=x-3

x=5+3=8

x=8

Substitute the value of x

NR=8-3=5

By property of rectangle

BI=AR=AN+NR=5+5=10 unit

BI=10 units

7 0
3 years ago
Write each expression in exponential form and find its value 2 x 2 x 2 2 ​
Natasha2012 [34]

Answer:

2^{4}

Step-by-step explanation:

8 0
3 years ago
275x=500-125x<br><img src="https://tex.z-dn.net/?f=275x%20%3D%20500%20-%20125x%20" id="TexFormula1" title="275x = 500 - 125x " a
Fynjy0 [20]
The value of x is 1.25 or 1 1/4

Explanation
==============================
275x=500-125x 
Move variable to the left side and change its sign
275x+125x=500
Collect the like terms
275x+125x=500 =====> 400x=500
Divide both sides of the equation by 400
400x/400=500 =======> x=5/4 which is the same as 1 1/4 or 1.25
Hope this helps : )
5 0
3 years ago
1. SOCCER Suppose a youth soccer field has a
padilas [110]

Answer:

L = 100

W = 60

Step-by-step explanation:

2L + 2W = 320

-2L + 2W = -80

4W = 240

W = 60

L - W = 40

L - 60 = 40

L = 100

6 0
2 years ago
HELP 20 POINTS!!! Does the infinite geometric series diverge or converge? Explain.
Nitella [24]

Answer:

c. it converges, it has a sum

8 0
3 years ago
Read 2 more answers
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