Which mathematical sentence most accurately expresses the information in the problem below?
crystal has 100 compact discs that she wants to put into boxes each of the boxes that she brought home holds 15 discs how many of these boxes will she need for all of her disks?
a: 100-b=15
b: b+15=100
c: 15b< 100
d: 15b> (or equal to) 100

associative property hopes this ! : )

step-by-step explanation:

135 is your answer

step-by-step explanation:

try 180 times three then divide that number by 4 (sides) to get your answer. im glad to : )

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

explanation:

remove parenthesis:

=

apply rule

=

multiply fractions:

=

=

divide:

=

mordancy.