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Hoochie [10]
3 years ago
5

Help will give brainliest

Mathematics
1 answer:
andriy [413]3 years ago
5 0

Answer:

<h2>120 Pennies</h2>

Step-by-step explanation:

First, we need to find 80% of 400

400 x 0.8 = 320

Now 50% of 400 is 200

320 - 200 = 120

Cary donated:

<h2>120 Pennies</h2><h2>I'm always happy to help :)</h2>
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Write an equation for the line in the given form.
nexus9112 [7]

Answer:

  5x +y = 34

Step-by-step explanation:

Since a point and slope are given, it is convenient to start with point-slope form, then rearrange the equation to put it into standard form.

For slope m through point (h, k), the point-slope form of the equation of a line is usually written ...

  y -k = m(x -h)

For m=-5 and (h, k) = (6, 4), the equation is ...

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  y -4 = -5x +30 . . . . . eliminate parentheses

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Standard form looks like ...

  ax + by = c

where a > 0 and GCD(a, b, c) = 1. Here's how we can get there.

  5x +y -4 = 30 . . . . . . add 5x

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3 0
3 years ago
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wlad13 [49]
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7 0
3 years ago
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Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made. (5 points)
NemiM [27]
If you would like to solve the equation -5x - 25 = 78, you should do this using the following steps:

<span>-5x - 25 = 78
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The error was already made at step 1.
7 0
3 years ago
Read 2 more answers
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