Answer:
no
Step-by-step explanation:
Answer:
4.5 miles per hour is her rate in miles per hour
Step-by-step explanation:
We want to convert 20 ft per second to miles per hour
If she jogs 20 ft in 3 seconds , then in one second , she will jog 20/3 ft
So convert 20/3 ft/second to miles per hour
Mathematically;
1 mile = 5280 feet
So one feet = 1/5280 mile
1 hour = 3600 seconds
1 second = 1/3600 hour
So, to go from miles/hour to ft/second ; we shall multiply by 1/5280 and divide by 1/3600
Hence; we have;
(20/3 * 1/5280)/1/3600
= 20/3 * 1/5280 * 3600/1
= 4.4545 which is 4.5 miles per hour
18.
18 x 3 - 14 = 40
.
........
First you wanna distribute the 3 to x and 4
So the problem will then be 3x+12= 27
Then you wanna subtract 12 from 27
You get 3x = 15
Now you wanna divide 3x and 15 by 3
You then get X = 5
Answer:
Factors can be set to zero in order to find the solutions, which are the x-intercepts on a graph.
ex:
x^2 + 4x - 4
(x + 2)(x + 2)
x+2=0
x=-2
x+2=0
x=-2
-2 would be the only x-intercept on the graph.
Someone correct me if I'm wrong, thank you