Question

curt has 12 models in all. three of the models are airplanes. curt has 5 more model cars than boats . how many models of cars does curt have?

Answer 1

Your answer is 7

Here is why:
12 - 3 is 9, if Curt has 5 more model cars than boats, then Curt has 2 boats and 7 model cars.

2 + 7 = 9
7 - 2 = 5

Answer 2

Answer: 7

Explanation:

Given : Total number of models Curt has = 12

Curt has 5 more model cars than boats .

Number of models of car =3

Let x be the number of boats he has , then the number of models of cars he has will be x+5 . (1 )

According to the question , we have

`x+x+5+3=12\\\\\Rightarrow\ 2x+8=12`

Subtract 8 from both sides, we get

`\\\\\Rightarrow\ 2x=4`

Divide both sides by 2, we get

`x=2`

Now, the number of models of cars = 2+5=7 [From (1)]

Hence, Curt has 7 models of cars.