Answer:
73
Step-by-step explanation:
Original number: XY
x = 3y - 2
10y + x = (10x + y) / 2 + 1/2
substitution: 10y + 3y - 2 = 13y - 2 = (10 * (3y - 2) + y) / 2 + 1/2
* 2 both sides and simplify: 26y - 4 = 31y - 19
31y - 26y = -4 + 19
5y = 15
y = 3
x = 7
Original number: 73
When the point is on the x axis, then the y coordinate=0
when the pointis on the y axis then the x coordinate=0 as well
Answer:
Step-by-step explanation:
Well depends the shape
volume of a rectangular solid : V = length * width * height, or V = lwh.
volume of a triangular pyramid: V=13Ah
Volume of a cone: V=πr^2 h
/3
etc..
Marco and Drew stacked boxes on a shelf. Marco lifted 9 boxes and Drew lifted 14 boxes. The boxes that Drew lifted each weighed 8 lb less than the boxes Marco lifted.
m − 8
14(m − 8) **
9(m + 8)
112m
hope this helps
