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3 years ago

8

Using formula z equals x over 5 and solving for x which is correct? x equals 5 z or x equals 5 over x or x equals z over 5 or x

equals 5 minus z

1 answer:

erastovalidia [21]3 years ago

6 0

Original
Z = X/5
Solve for X
Multiply both sides by 5
5Z = X
Answer
X = 5Z

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The sum of ruqiyo’s age and Mohammed’s age is 117. Five times ruqiyo’s age is 9 more than 3 times mohammed’s age. How old is eac

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Answer:

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Step-by-step explanation:

Let the ages be r and m

<u>We have:</u>

r + m = 117
5r = 9 + 3m

<u>Substitute m in the second equation and solve for r:</u>

m = 117 - r
5r = 9 + 3( 117 - r)
5r = 9 + 351 - 3r
5r + 3r = 360
8r = 360
r = 360/8
r = 45

<u>Then m is</u>

m = 117 - 45 = 72

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