Question

Which equation can be represented by the equation x+7=12 ?

A. Two friends are playing chess. One friend won 7 games and the other won 12. What is x, the total number of games played?
B. Ryder has 12 plants in his garden. This includes 7 tomato plants. What is x, the number of plants in Ryder's garden that are not tomato plants?
C. Dorina ran 7 laps around the track at practice on Tuesday. On Thursday, she ran 12 laps. What is x, the total number of laps that Dorina ran?
D. Zoltan spent $12 on a shirt and $7 on sunglasses. What is x, the total amount that he spent?

Answer 1

The equation x + 7 = 12 represents the scenario where Ryder has 12 plants in total and 7 are tomato plants; subtracting 7 from 12 gives us 5, meaning x, the number of plants that are not tomato plants, is 5.

Step-by-step explanation:

The equation x + 7 = 12 is asking us to find a value for x such that when we add 7 to it, the result is 12. To solve this equation, we subtract 7 from both sides to isolate x:

x + 7 - 7 = 12 - 7

x = 5

Looking at the provided options, the correct scenario that can be represented by this equation is:

B. Ryder has 12 plants in his garden. This includes 7 tomato plants. What is x, the number of plants in Ryder's garden that are not tomato plants?

In this context, x represents the number of plants that are not tomato plants. If Ryder has 12 plants in total and 7 of them are tomato plants, then subtracting 7 from 12 leaves us with 5 plants that are not tomato plants.