The unit rate of miles per hour is 28
Answer:
Step-by-step explanation:
w+ -4 2/5= 1/10
W = 1/10 + 4 2/5
W = 1/10 + 22/5
W = (1 + 44)/10
W = 45/10
W = 9/2
W = 4 1/2
Answer: the answer is infinite solutions
Step-by-step explanation:Systems of Equations Level 1:
Question 1
Two linear equations are given below.
Exactly how many solutions does this system of equations have?
Select one:
A unit rate compares a quantity to one unit of measure. You often see the speed at which an object is traveling in terms of its unit rate.
<h3>
Answer:</h3>
- running speed: 8 mph
- walking speed: 2 mph
<h3>
Step-by-step explanation:</h3>
Let w represent Lizette's walking speed. Then her running speed is w+6. The relationship between speed, time, and distance is ...
distance = speed × time
Lizette ran for 1.5 hours, then walked for 3 hours. Her total distance is ...
(w+6)·1.5 + w·3 = 18
4.5w + 9 = 18 . . . . . simplify
4.5w = 9 . . . . . . . . . subtract 9
w = 2 . . . . . . . . . . . .divide by 4.5
Lizette's walking speed is 2 mph; her running speed is 8 mph.
