Answer:
The total number of marbles is
Step-by-step explanation:
There is a typo error in the question.
Helena lost her marbles. But then she found them and put them in 4 bags with m marbles in each bag.
So, total marbles are = 4m
She had 3 marbles left over that didn't fit in the bags.
So, the total number of marbles is
-9
2(-x)² - 5 = 157
2x² - 5 = 157
add 5 to each side of the equation:
2x² = 162
divide both sides by 2:
x² = 81
√81 = 9 or -9
161391
138000 x 16.95/100 = 23391
138000 + 23391 = 161391
option a
we have:
7/2x-3(5x-1/2)
apply distributive property we have:
7/2x-3*5x-3*(-1/2)
7/2x-15x+3/2
7/2-15=-23/2
so we have:
-23/2x+3/2