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NeX [460]
3 years ago
12

Select the THREE equations that this diagram could represent.

Mathematics
1 answer:
Vladimir [108]3 years ago
6 0

<u>Question </u>

Select the three equations that this diagram could represent.

<u>                                                                                                                                     </u>

<u>Answer</u>

<em>Well, we first have to find out what the diagram says.</em>

<em>So what the diagram says is that  18 + 18 + 18 = 54.</em>

<em>Given this information,  we have to figure what other answers = 54.</em>

<em>Therefore the answers are </em>

(A) 18 * 3 = 54.

(D) 54/18 = 3

(E) 54/3 =18

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(2,1)

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Substitute into the first equation

3x+ (-3+2x) = 7

Combine like terms

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Add 3 to each side

5x-3+3 = 7+3

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Can someone please help me with this? pls &amp; thank you!
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see explanation

Step-by-step explanation:

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4 years ago
On a​ team, 6 girls and 5 boys scored a total of 57 points. The difference between the number of points scored by the 6 girls an
kow [346]

Answer:

The number of points scored by girls = x = 7 points

The number of points scored by boys = y = 3 points

Step-by-step explanation:

The number of points scored by girls = x

The number of points scored by boys = y

On a​ team, 6 girls and 5 boys scored a total of 57 points.

6 × x + 5 × y = 57

6x + 5y = 57....... Equation 1

The difference between the number of points scored by the 6 girls and the number of points scored by the 5 boys is 27.

6x - 5y = 27.......... Equation 2

6x + 5y = 57....... Equation 1

6x - 5y = 27.......... Equation 2

We Add the Equations together

12x = 84

x = 84/12

x = 7 points

6x + 5y = 57....... Equation 1

6(7) + 5y = 57

42 + 5y = 57

5y = 57 - 42

5y = 15

y = 15/5

y = 3 points

Hence:

The number of points scored by girls = x = 7 points

The number of points scored by boys = y = 3 points

3 0
3 years ago
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