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Olin [163]
3 years ago
8

What is the value of x in -4(5x-5)=120

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
6 0

Answer: x = -5

Step-by-step explanation: To solve this equation, we start by distributing the -4 through the parentheses on the left side.

So we have -4 times x which is -20x and -4 times -5 which is positive 20. So our equation now reads -20x + 20 = 120.

Solving from here, we subtract 20 from both sides of the equation and we have -20x = 100 and dividing both sides by -20, we find that x = -5.

Although I will not provide work to check our answer, the great thing about solving equations is that your can always check your answer by substituting what you got as a final answer into the original equation.

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Step-by-step explanation:

Number of males is

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Number of females not enrolled

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(a)

The table based on data is

<u>                 Enrolled        Not enrolled      Total  </u>

<u>Male            82                  36                     118    </u>

<u>Female        102                56                     158   </u>

Total            184                 92                     276

(b)

Percentage of students were males that went to magic college

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  • 82/276*100% = 29.71% (rounded)

(c)

Percentage of females went to magic college

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  • 102/158*100% = 64.56% (rounded)
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Step-by-step explanation:


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