m is an unknown number that is being decreased by 7.
OPTION A IS WRONG BECAUSE MATHEMATICALLY IT IS WRITTEN AS
B IS WRONG BECAUSE IT MEANS
C IS WRONG BECAUSE IT MEANS
BUT D IS THE ANSWER BECAUSE IT MEANS
SINCE m IS TREATED AS AN UNKNOWN NUMBER.
GOODLUCK!!!!
Answer:
18° and 72°
Step-by-step explanation:
The angle measures are unknown, so they will be represented with the variable, x. Since, one angle is 4 times the other, this will be represented with 4x.
To find complementary angles, they are added together and equal 90. So let's create an equation.
x + 4x = 90
Now solve for x.
5x = 90
5x/5 = 90/5
x = 18
One angle is 18°.
Now find the second angle.
4x
plugin 18 for x and multiply
4(18) = 72
He needs to buy 3.6 spools but I guess that wouldn't be possible in real life so he needs to get 4 and then has some leftover.
12 3/5 / 3 1/2 = 3.6
309/17 equals about 18.176 but it’s a rounded answer/decimal.
