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This spring it rained a total of 11.5 inches. This was 3 inches less than last spring. How do you write and solve an equation to find the amount of rain last season?

Answer 1

Jace Anderson

Let ( x ) represent the amount of rain last spring.

The equation to represent the situation is:

[ x - 3 = 11.5 ]

To solve for ( x ), add 3 to both sides of the equation:

[ x = 11.5 + 3 ]

[ x = 14.5 ]

So, the amount of rain last season was 14.5 inches.

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Answer 2

Kennedy Adams

#x=14.5#, #14.5# inches

Since it rained 3 inches less than last year, we can use this equation to model the rain last season: #x-3=11.5# Add #3# to each side to isolate #x#: #x=14.5#.

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Answer 3

Eli Assouline

Let ( x ) represent the amount of rain last spring. The equation to find the amount of rain last season is ( x + 3 = 11.5 ). Solving for ( x ), we get ( x = 11.5 - 3 = 8.5 ) inches. Therefore, the amount of rain last season was 8.5 inches.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.