1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
EastWind [94]
2 years ago
7

The bill for the repair of a computer was $179. The cost of parts was $44, and labor charge was $45 per hour. How many hours did

it take to repair the computer?
Mathematics
1 answer:
laila [671]2 years ago
8 0

Step-by-step explanation:

44 + 45h = 179

45h = 179 - 44

45h = 135

h = 135/45

h = 3 It took 3h to repair

I hope that help's

You might be interested in
A communications channel transmits the digits 0 and 1. However, due to static, the digit transmitted is incorrectly received wit
m_a_m_a [10]

Answer:

The probability that the message will be wrong when decoded is 0.05792

Step-by-step explanation:

Consider the provided information.

To reduce the chance or error, we transmit 00000 instead of 0 and 11111 instead of 1.

We have 5 bits, message will be corrupt if at least 3 bits are incorrect for the same block.

The digit transmitted is incorrectly received with probability p = 0.2

The probability of receiving a digit correctly is q = 1 - 0.2 = 0.8

We want the probability that the message will be wrong when decoded.

This can be written as:

P(X\geq3) =P(X=3)+P(X=4)+P(X=5)\\P(X\geq3) =\frac{5!}{3!2!}(0.2)^3(0.8)^{2}+\frac{5!}{4!1!}(0.2)^4(0.8)^{1}+\frac{5!}{5!}(0.2)^5(0.8)^0\\P(X\geq3) =0.05792

Hence, the probability that the message will be wrong when decoded is 0.05792

4 0
2 years ago
Given the linear equation 3x + y = 5, find the slope of its graph
umka2103 [35]

Answer:

B) -3

Step-by-step explanation:

1. First you have to write the equation in slope intercept form. To do that, you must have y be alone on one side.

2. move the 3x to the right side with the 5 by subtracting 3x from both sides. Since 3x will cancel on the left, y will be left alone. y=-3x+5

3. Now that you're in slope intercept form, you can find the slope easily. The slope will always be the number in front of x. In this case, the number in front of x is -3. Therefore, -3 is your slope!

7 0
3 years ago
Read 2 more answers
I need the smaller and larger angle
SSSSS [86.1K]

Answer:

x=11

Step-by-step explanation:

(4x)+(3x+13)=90                

if you look at the beam, it includes a 90 degree angle.

7x+13=90

distributive property

7x=77

subtracted both sides by 13

x=11

divided both sides by 7 to isolate x

4(11)         3(11)+13

44             33+13

                36

4(x) is the larger angle

6 0
2 years ago
What percent of this grid is shaded
faltersainse [42]

Answer:

The 4th one cuz it’s a percent

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Kiera is in her last year of college at the University of Houston. She has a scholarship that pays 75% of her costs. Her classes
sergiy2304 [10]
If the scholarship pays 75% of her classes cost, that means that she has to pay the 25% remaining of the classes cost so if we calculate it as follow:

0.25 * $14,000 = $3,500 
 =================================================================
Another method to understand:
if the scolarship pays 75% of her classes that will be 
0.75* $14,000 = $10,500

now she has to pay the remaining of the total cost and that will be 
$14,000 - $10,500 = $3,500.

5 0
3 years ago
Other questions:
  • Please tell me if my answer is correct
    8·2 answers
  • PLEASE HELP IF YOU ARE GOOD AT MATH THANKS
    12·1 answer
  • Read the word problem.
    7·2 answers
  • The product of the number g and the opposite of 7 is equal to k.
    6·2 answers
  • the price of a small pizza increased from $6 to $9 what is the percent of increase in the coast of the pizza round the nearest p
    15·1 answer
  • On mobile devices, global voice traffic has been growing by approximately 222 petabytes (\text{PB})(PB)left parenthesis, P, B, r
    14·1 answer
  • Simplify the algebraic expression<br> 6•4-12÷2+3(x-5)​
    7·1 answer
  • Solve: x+2/x-4&lt;0<br> O _4 O -2 -2 -4
    15·1 answer
  • A.) The formula for the volume of a sphere is given below and the relationship between the radius r and the diameter d is r=d/2.
    7·1 answer
  • If a student wanted to immediately eliminate (get rid of) the fraction in this problem, they should:
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!