Let's say d is the cost of the desk and c is the cost of the chair. We know that:
c + d = 720
and
d = 5 * c
We can substitute d in the first equation with 5 * c to solve for c. c = $120.
I think it’s b... I don’t but i tried if it is wrong I’m sorry if it was right your welcome
Answer:
56.43
Step-by-step explanation:
52.25 + 4.18 (8% tax)
Answer:
y = 1.5x + 3.2009
Step-by-step explanation:
I plotted your points and drew a linear regression line.
Its equation is
y = 1.5x + 3.2009
The regression line ignores the fact that the points fall along a smooth curve.
A parabolic regression line fits the data much better.
The equation for that line is
y = - 0.1647x² + 4.1357x - 5.6946
It is the equation for a vertical parabola opening downward.
He needs 13 cans of paint.
The lateral area is given by the area of 5 rectangles, whose dimensions are 15 by 5:
5(15)(5) = 375
Divide this by 30:
375/30 = 12.5 ≈ 13