X = baseball
y = basketball
8x + 2y = 80
4x + y = 40
y = 40 - 4x ------(1)
5x + 3y = 85 -------(2)
sub (1) into (2)
5x + 3(40 - 4x) = 85
5x + 120 - 12x = 85
5x - 12x = 85 - 120
-7x = -35
x = 5
sub x=5 into (1)
y = 40 - 4(5)
= 40 - 20
=20
3.75 x 8 = 30 in (brick size)
13 x 12 = 156
156+6 = 162
18.9 x 12 = 226.8
226.8 x 162 = 36741.6 in (patio size)
36741.6 / 30 = 1224.72
You need 1224.72 bricks
(or round to 1225)
Answer:
Step-by-step explanation:
2ft=24in
The first day 24(1/6)=4in fell
The second day 24(7/12)=14in fell
The third day 24-4-14=6in fell
Answer: 6
Step-by-step explanation:
Answer:
range = 6
Step-by-step explanation:
Highest number - lowest number
9 - 3
= 6