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crimeas [40]
3 years ago
6

The bill for the repair of a car was $357. The cost for the parts was $285. The cost of labor was $32 per hour. Use an equation

to find out how long it took for the mechanic to repair the car?​
Mathematics
1 answer:
Ilya [14]3 years ago
4 0

Answer:

2.25 hours

Step-by-step explanation:

Hope this helps! sorry was a tad bit late

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The triangle shown below has an area of 12.<br><br> find x
Gnoma [55]

Step-by-step explanation:

area \: of \: triangle  =  \frac{1}{2}  \times 6 \times x \\  \\  \therefore \: 12 =  3 \times x  \\  \\ \therefore \:  x =  \frac{12}{3}  \\  \\  \:  \:  \:  \:  \:  \:  \:  \:  \huge \purple{ \boxed{\therefore \:  x =  4}}

8 0
3 years ago
Sort the following numbers from least to greatest.<br> 18.5635, 18 13/16, 18.3125
Vikki [24]

Answer:

18.3125

18.5635

18 13/16

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The following is a linear programming formulation of a labor planning problem. There are four overlapping shifts, and management
dexar [7]

Answer:

d. 15

Step-by-step explanation:

Putting the values in the shift 2 function

X1 + X2 ≥ 15

where x1=  13, and x2=2

13+12≥ 15

15≥ 15

At least 15 workers must be assigned to the shift 2.

The LP model questions require that the constraints are satisfied.

The constraint for the shift 2 is that the  number of workers must be equal or greater than 15

This can be solved using other constraint functions e.g

Putting  X4= 0 in

X1 + X4 ≥ 12

gives

X1 ≥ 12

Now Putting the value X1 ≥ 12  in shift 2 constraint

X1 + X2 ≥ 15

12+ 2≥ 15

14 ≥ 15

this does not satisfy the condition so this is wrong.

Now from

X2 + X3 ≥ 16

Putting X3= 14

X2 + 14 ≥ 16

gives

X2  ≥ 2

Putting these in the shift 2

X1 + X2 ≥ 15

13+2 ≥ 15

15 ≥ 15

Which gives the same result as above.

6 0
3 years ago
Did I do this correctly??please help​
soldier1979 [14.2K]
I’m not sure, hope this helped
5 0
3 years ago
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Maya spent her allowance on playing an arcade game a few times and riding the Ferris wheel more than once.
goldfiish [28.3K]
<span>To write a two-variable equation, you would first need to know how much Maya’s allowance was. Then, you would need the cost of playing the arcade game and of riding the Ferris wheel. You could let the equation be cost of playing the arcade games plus cost of riding the Ferris wheel equals the total allowance. Your variables would represent the number of times Maya played the arcade game and the number of times she rode the Ferris wheel. With this equation you could solve for how many times she rode the Ferris wheel given the number of times she played the arcade game.</span>
4 0
3 years ago
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