Answer:
3m+2=11
Step-by-step explanation:
Because equation is joined with equal sign
M=-3.5+2t, R=-3t when they meet M=R so
-3.5+2t=-3t
-3.5+5t=0
5t=3.5
t=0.7 hrs (42 minutes)
Answer:
11
Step-by-step explanation:
the formula for the area of a triangle is base times height divide by two. 22 is half of 44 so the base would have to be 11.
11 (base) times 4 (height) equals 44 divide by 2 equals final answer of 11
I’m pretty sure it would be C= 81.64
Answer:
60ml of the 50% alcohol solution and 20ml of the 6% alcohol solution
Step-by-step explanation:
We can build a system of equation for solve this problem
x = first solution
y = second solution
x + y = 80
0.5x + 0.06y = 80 * 0.39
x + y = 80
0.5x + 0.06y = 31.2
x = 80 -y
0.5(80-y) + 0.06y = 31.2
40 - 0.5y + 0.06y = 31.2
-0.44y = -8.8
y = 20
x = 80 - 20 = 60
