5m+48
you will need to distribute 4 to the equation in the parenthesis first
9m+4(12-m)
9m+48-4m
combine like terms
5m+48
148,000,000,000,000,000,000,000
Answer:
Step-by-step explanation:
The relative speed of the two trains is the sum of the speeds they are traveling. (If you're on either of the trains, this is the speed you appear to be moving when you see the other train.) In our problem, the relative speed of the two trains is 70 mph + 60 mph = 130 mph. What if the trains were traveling in the same direction? Then we'd need to subtract the speed of the slower train from the speed of the faster train, and their relative speed would be 10 mph.
Answer:
y = 3/2x - 1
Step-by-step explanation:
Given: 2x + 3y = 18
The equation of the line in the slope-intercept form is y = -2/3x + 6.
slope = m = -2/3
The slope of the perpendicular line is negative inverse.
m = 3/2.
Equation of the perpendicular line:
y = 3/2x + a.
Use the given point of (-4, -7) to find a:
-7 = (3/2)(-4) + a
a=−1.
y = 3/2x - 1
B, since 13 ppl have 2 or less TVs while 12 have 3 or more
