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3 years ago

Given the replacement set : -7 , -8 , -9 , -10 . which value of x correctly solves this equation 7.4x -2 = -61.2

Mathematics

1 answer:

Nonamiya [84]3 years ago

6 0

Answer:

answer is -8

Step-by-step explanation:

the question is in which value of x this equation become -61.2

7.4x-2=-61.2 by addinng both side 2

7.4x=-61.2+2

7.4x=-59.2 ,to get the value of x divide both side by 7.4.

then x =-59.2÷7.4

x= -8

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Explanation

Stan's, Mark's and Wayne's ages are consecutive whole numbers and Stan is the youngest and Wayne is the oldest.

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Given that, the sum of their ages is 108. So, the equation will be.....

$n+(n+1)+(n+2)=108\\ \\ 3n+3=108\\ \\ 3n=108-3=105\\ \\ n=\frac{105}{3}=35$

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Step-by-step explanation:

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2 years ago

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2 years ago

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grigory [225]

Given:
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3 years ago