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Natasha_Volkova [10]
3 years ago
8

Which is the following have the correction solution? Select all that apply.

Mathematics
1 answer:
Mars2501 [29]3 years ago
8 0

Answer:

(b) is correct.

Step-by-step explanation:

We substitute the given  value of x in each equation and see if they fit.

a) 3x + 7 = 10   Plug in x = -1:

3(-1) + 7 = 4  so this solution is incorrect>

b) is correct because

5(5+4) - 5 = 45 - 5 = 40.

c and d are incorrect.

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3 years ago
Josie spent 4/7 of ten money in her purse on some books, and the rest of the money on 18 markers. Each marker cost $1.20. How mu
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Let's assume money in Josie's purse to begin with as 'x'

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Total cost of markers = ( total number of markers)*(price of each marker)

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Total cost of markers is

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now, we are given

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so, rest money is

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so, we can set them equal and then we can solve for x

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3 years ago
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Firlakuza [10]
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3 years ago
A. 15 <br> B. 75 <br> C. 100 <br> D. 105
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Answer:

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4 0
3 years ago
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