Answer:
On a graph, find the point of intersection of two lines; the first line has y-intercept = 5 and slope = −3, and the second line has y-intercept = 2 and slope =
Step-by-step explanation:
The student didn’t make an error
Move variable to the left-hand side and change its sign
Move constant to the right-hand side and change its sign
Collect like terms -5a+2a= -3a
-3a=-9+12 Calculate the sum -9+12=3
-3a=3 Divide both sides of the equation by -3
And you should get a=-1
In my opinion
Given:
volume = 1,000 in³
height = 10 in
1,000 in³ / 10 in = 100 in² Area.
100 in²
Length Width Surface Area of the Rectangular prism
100 in 1 in 2,220 in²
50 in 2 in 1,240 in²
25 in 4 in 780 in²
20 in 5 in 700 in²
Surface area = 2(wl + hl + lw)
The best dimension is 20 inches by 5 inches by 10 inches. It has lesser surface area than other dimensions. Thus, it can save more materials.
