Answer:
40
Step-by-step explanation:
20 + 2.5x = 3x
20 = 0.5x
x = 40
Answer: a) Length of wire to replace old one=9ft
b) Length of wire=3.09ft
Leftover wire=0.91ft
Step-by-step explanation: from the right angle triangle, Tan&=20/15
&=53.13°
Length of wire,x=cos 31.13=x/15
15cos31.13
X=9
b) Tan&=10/6
Tan^-110/6
&=59.05
Length= 6cos59.04
X=3.09
4-3.09=.91= leftover wire
5/20 .
add up the number of all the balls combined
5 out of the 20 total are brown
Answer:learn your self
Step-by-step explanation:
Lol
Upon looking, you should see 4 points where the graphs intersect, so there are 4 solutions to the non-linear system of equations.