Mr. Burke had 40 pencil. He gave his class 1/5 of the pencils. Then he packed away 1/4 of the pencils that reminded. All the other pencil were faulty, so he threw them away. How many pencils were thrown away Please help me

26 pencils were thrown away.

Step-by-step explanation:

1/5 = 8/40

1/4 = 6/32

add them together 18/40

26 were thrown out

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

hreryryrranswer:

step-by-step explanation: