Answer:
here's what we know:
a + b = 72
a - b = 26
We can use the elimination method to solve this problem:
a + b = 72
a - b = 26
---------------
2a = 98
Divide both sides by 2:
a = 49
So we now have:
49 + b = 72
and:
49 - b = 26
Subtract 49 from both sides:
b = 23
and
-b = -23 (multiply both sides by -1) → b = 23
Step-by-step explanation:
Answer:
y=-x+1
Step-by-step explanation:
The slope is -1. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form.
(y--1)=-1(x-2)
y+1=-x+2
y=-x+1
Answer:
3/4
Step-by-step explanation:
-2-(-5) divided into 6-2
-2 +5 divided into 4
3 divided into 4
The unit rate would be number of miles per hour ( 1 hour).
Divide the total number of miles by the total number of hours:
100 miles / 4 hours = 25 miles per hour.
The unit rate is 25 miles.
The answer to this problem is b.
