High School

A mountain gorilla weighs 135 pounds and is gaining 1/2 pound each week. An eastern gorilla weighs 145 pounds and is losing 1/4 pound each week. Which of the following equations could be used to determine \( x \), the number of weeks that it will take until the two gorillas weigh the same amount?

A. \( 135 + \frac{1}{2}x = 145 + \frac{1}{4}x \)
B. \( 135 + \frac{1}{2}x = 145 - \frac{1}{4}x \)
C. \( 135x + \frac{1}{2} = 145x + \frac{1}{4} \)
D. \( 135 + \frac{1}{2}x = 143 + \frac{1}{4}x \)

Answer :

The equation that represents two Gorillas weighing the same is,

B. 135 + (1/2)x = 143 - (1/4)x.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, A mountain gorilla weighs 135 pounds and is gaining 1/2 pound each week and an eastern gorilla weighs 145 pounds and is losing 1/4 pound each week.

The weights of the two Gorillas will be the same when we'll equate their individual equations which is,

135 + (1/2)x = 143 - (1/4)x.

Solving for 'x' would give us the number of weeks required for two Gorillas

to weigh the same.

learn more about numerical expressions here :

https://brainly.com/question/29199574

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Answer:

I think its b because is says loosing 1/4 lbs each week. That would be subtraction. The others are adding.

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