Answer:
who?
Step-by-step explanation:
Answer:
-32 degrees
Step-by-step explanation:
Okay so-
8 x 4 = 32
0 - 32 = -32
-32 degrees Fahrenheit
Let a and b be the respective rates in bricks per minute for Alex and Bob separately.
Alex lays 4 bricks per minute more than Bob
a = b + 4
Working together, their rates scale by 3/4 and they achieve 15 bricks per minutes.
(3/4)(a + b) = 15
Two equations, two unknowns, we solve:
b = a - 4
(3/4)(a + a - 4) = 15
2a - 4 = (4/3) 15 = 20
2a = 24
a = 12
b = a - 4 = 8
Answer: Alex alone does 12 bricks per minute, Bob alone 8 bricks per minute
Check: a=b+4, good
(3/4)(12 +8)=(3/4)(20)=15, good
Answer:
the Y intersection will be positive.
example
Y = 8X +16
-12
Y= 8x+4
Answer:
Mean
Step-by-step explanation:
You would add up all the numbers you have, then divide by however many numbers there are to get the average, or mean of the data.
