Answer:
x - 80
Step-by-step explanation:
Ravi had x dollars in all.
x - 80
An equation that would represent the relationship between cost and revenue would be: 7.50t + 15s = 525
Hope this helps!! :)
Answer:
D. 160J
Step-by-step explanation:
Work = Force * Distance
but where is the force?
from here:
weight (not mass) is a force unit (Newtons) so it can be used here.
How do we get weight?
Mass * G
what is G?
gravity force... and it equals 9.8
so you take the box's mass (9.10)
multiply by 9.8 (9.10*9.8 = 89.18)
then plug into the first equation as the force (work= 89.18 * distance)
we also plug In the distance (work = 89.18 * 1.8)
and solve for work! (work = 89.18 * 1.8 = 160.52400)
then round the to the closest one (160)
and there you go! you've got your answer!
Hope this helps,
Yotam
P.S you can comment back if you are still confused and I will try to explain it again better.
4x² - 3xy + 9y² - 3(5xy + 7y²)
4x² - 3xy + 9y² - 3(5xy) - 3(7y²)
4x² - 3xy + 9y² - 15xy - 21y²
4x² - 3xy - 15xy + 9y² - 21y²
4x² - 18xy - 12y²
