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devlian [24]
3 years ago
5

your car broke down and the final bill was $306.50. The part that was replaced cost $119 and the charge mechanics labor was 75 p

er hour. Write an equation to model this situation then solve the equation for the number of hours the mechanic worked on your car.
Mathematics
1 answer:
erastova [34]3 years ago
5 0

Answer:

\huge\boxed\text{Equation:}\huge\boxed{\text{Equation:   }119+75x=306.50}\\

\huge\boxed{\text{Hours worked on:   } 2.5}

Step-by-step explanation:

We can create an equation for this problem by converting the words to an equation.

The <em>flat fee</em> was $119. We then add $75 for every hour worked. This means that this becomes 119+75x. Since the total cost was $306.50, the equation is 119+75x=306.50.

We can now solve for x, the amount of hours worked, to find it’s value.

119 + 75x = 306.5\\\\75x=187.5\\\\x = 2.5

Hope this helped!

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MatroZZZ [7]

Answer:

P = 70 mi A = 210 mi^2

Step-by-step explanation:

Sides:

a = 29 m

b = 20 m

c = 21 m

Angles:

A = 90 °

B = 43.6028 °

C = 46.3972 °

Other:

P = 70 m

s = 35 m

K = 210 mi^2

r = 6 m

R = 14.5 m

Agenda:

A = angle A

B = angle B

C = angle C

a = side a

b = side b

c = side c

P = perimeter

s = semi-perimeter

K = area

r = radius of inscribed circle

R = radius of circumscribed circle

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Heron’s formula says that if a triangle ABC has sides of lengths a, b, and c opposite the respective angles, and you let the semiperimeter, s, represent half of the triangle’s perimeter, then the area of the triangle is

7 0
2 years ago
An electric bulb is sold in a box measuring 5 cm by 4 cm by 4 cm. If the shopkeeper receives them in a carton measuring 50 cm by
katen-ka-za [31]

Answer:

250

Step-by-step explanation:

Bulb box and carton both are of cuboidal shape.

<u>For bulb </u><u>box</u><u> </u><u>the </u><u>d</u><u>imensions</u><u> </u><u>are:</u>

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  • \implies V_{Bulb\: box} =5(4)(4)

  • \implies V_{Bulb\: box} =80\: cm^3

<u>For </u><u>Carton </u><u>the dimensions are</u><u>:</u>

  • l = 50 cm, w = 20 cm, h = 20 cm

  • V_{Carton} =lwh

  • \implies V_{Carton} =50(20)(20)

  • \implies V_{Bulb\: box} =20,000\: cm^3

To find the number of bulbs packed in the carton, divide the V_{Carton} by V_{Bulb\: box}

  • Number \:of \:bulbs =\frac{V_{Carton}}{V_{Bulb\: box}}

  • \implies Number \:of \:bulbs =\frac{20,000}{80}

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So, 250 bulbs will be packed in one carton.

3 0
2 years ago
Write the percent as a fraction or mixed number in simplest form.<br><br> 150%
N76 [4]

Answer:

3/2 or 1 1/2

Step-by-step explanation:

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3 years ago
Graph the system of equations. Then determine whether the system has no solution, one solution, or infinitely many solutions. If
pav-90 [236]

Answer:

Second option: One solution. Independent.

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" is the y-intercept.

Since the equations of the system have this form, we know that they are lines.

We can identify that the y-intercept of the first equation y=-5x+1 is:

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Then, we can graph the first line which passess through the points (0,1) and (0.2,0). Observe the graph attached.

The y-intercept of the second equation y=-2x-2 is:

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Now we need to find the x-intercept. Substitute y=0 and solve for "x":

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Then, we can graph the second line, which passess through the points (0,-2) and (-1,0).

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4 0
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FromTheMoon [43]

9514 1404 393

Answer:

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The number of games must be an integer value, so the maximum number of games they can bowl is 5.

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