Question

Stephen is baking cookies for his school bake sale. He bakes 300 cookies.

1/2 are chocolate chip cookies
3/20 are peanut butter cookies
1/10 are sugar cookies
The rest are lemon cookies

How many cookies are lemon cookies?

Answer 1

Answer:the geezer is right

Explanation:

Answer 2

The number of lemon cookies is 75

Explanation:

we know that

The total cookies are 300

Let

x ----> the number of lemon cookies

`x=300(1-(1)/(2) -(3)/(20)-(1)/(10))`

Multiply by 20 both sides to remove the fractions

`20x=300(20)-300(10)-300(3)-300(2)`

`20x=1,500`

`x=75`

therefore

The number of lemon cookies is 75