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Nataly [62]
3 years ago
9

When Carrie mows a lawn, she charges a flat fee of $5 plus an hourly rate, r. Carrie worked 2 hours at her last job. The equatio

n 2r+5=20 represents, in dollars, what Carrie charged. What is Carrie’s hourly rate?
Mathematics
1 answer:
Dmitrij [34]3 years ago
3 0

Answer:

$7.50

Step-by-step explanation:

You use inverse operations to evaluate the equation. You subtract 5 from 20, which is 15. Then you divide 15 by 2, which is 7.5.

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The slope for (0,7) and (7,7)
Softa [21]

Answer:

slope = 0

Step-by-step explanation:

point1 =  (0,7)

point 2 =(7,7)

slope = (y2-y1)/(x2-x1) => (7-7)/(7-0)

slope = 0

4 0
2 years ago
Read 2 more answers
What is 1+2+3+4+5+6+7?
Elan Coil [88]

Answer:

28

Step-by-step explanation:

6 0
2 years ago
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PLEASE HELP ME, I HAVE NO IDEA! Find an equation for the line below.
irga5000 [103]

9514 1404 393

Answer:

  y -2 = -2/3(x +4)

Step-by-step explanation:

There are several different forms of the equation for a line. Each is useful in its own way. Here, the line crosses the y-axis at a point between integer values, so using that intercept point could be problematical. That suggests the "point-slope" form of the equation for a line would be a better choice.

That form is ...

  y -k = m(x -h) . . . . . . . line with slope m through point (h, k)

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The two marked points are (-4, 2) and (5, -4). All we need is the slope.

The slope is given by the formula ...

  m = (y2 -y1)/(x2 -x1) . . . . . . . . where the given points are (x1, y1) and (x2, y2)

  m = (-4 -2)/(5 -(-4)) = -6/9 = -2/3

Using the first point, the equation for the line can now be written as ...

  y -2 = -2/3(x -(-4))

  y -2 = -2/3(x +4)

8 0
2 years ago
What is the image of (7, -3) after a reflection over the x-axis?
telo118 [61]

Answer:(7,3)

Step-by-step explanation:

5 0
2 years ago
A man was traveling by air is allowed a maximum of 20kg luggages .The man has four bags weighing 3.5kg ,15 kg ,2kg and 1.5kg .Fi
KatRina [158]

Answer:

See explanation

Step-by-step explanation:

Maximum weight = 20 kg

Bag 1 = 3.5kg

Bag 2 = 15 kg

Bag 3 = 2kg

Bag 4 = 1.5kg

Total weight of bags = 22 kg

Excess weight of his luggage = Total weight of bags - Maximum weight

= 22 kg - 20 kg

= 2 kg

Express the excess weight as a percentage of his maximum weight allowed = excess weight / maximum weight × 100

= 2/20 × 100

= 0.1 × 100

= 10%

Express the excess weight as a percentage of his maximum weight allowed = 10%

5 0
3 years ago
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