Answer: 4/5
Step-by-step explanation:
Here, The hurdle track that is 1/5 of a mile long.
And, After extending the track, the length of the hurdle track = 1/4 of a mile
Therefore, the unit rate of length in the longer track per mile of length in the shorter track = the initial length of the hurdle track / the final length of the hurdel track
= 
= 
16 units just count the tiny lines in the middle by 2
Answer:
Step-by-step explanation:
26/8=3.25
Answer:
D. a−b=10 a=3b+4
Step-by-step explanation:
Difference between a and b means to subtract b from a
We have,
a-b=10
a is 4 more than 3 times b
4 more than means to add 4
3 times b means to multiply b by 3
Therefore, a=3 times b + 4
a=3b+4
a - b=10; a=3b+4
Factor to find the roots.
(x+5)(x-1)=0
Proof:
5-1=4
5*-1=-5
Then apply the Zero Product Property.
(x+5)=0
x=-5
(x-1)=0
x=1
Roots: x=-5, x=1
