Answer:
Step-by-step explanation:
Givens
<em>Student A</em>
d = 3/4 mile
t = 6 minutes
<em>Student B</em>
d = 1/2 mile
t = 5 minutes
Note
In both cases, the units are the same, so unit conversion is not necessary.
Solution
<em>Student A</em>
r = d / t
r is the rate of travel in miles / minute
r = 3/4 / 6
r = 3.4 // 6/1 The 1 is put below the 6 so it is easier to divide. Invert the bottom and multiply.
r = 3/4 * 1/6
r = 3/24
r = 1/8 miles / minute
<em>Student B</em>
r = d / t
r = 1/2 // 5 / 1 Turn the bottom fraction upside down and multiply
r = 1/2 * 1/5
r = 1/10
Question
which is bigger: 1/8 or 1/10?
1/8 = 0.125
1/10 = 0.1
1/8 is bigger by 0.025
Answer
Student A is faster by 0.025 miles / minute.
3.5 think of it as 3.0
C. ——
2.0
Answer:
1) -17x-9
Step-by-step explanation:
1)
(-2x^3+x-5)+(x^3-3x-4)
Combine like terms using P.E.M.D.A.S:
(-2x^3+x-5)+(x^3-3x-4)
(-9x-5)+(-8x-4)
Combine like terms:
(-2x^3+x-5)+(x^3-3x-4)
(-9x-5)+(-8x-4)
-17x-9
I hope this helps a bit!☺
Answer:
9.22
Step-by-step explanation:
6x6 + 7x7 = c^2
36 + 49 = c^2
85 = c^2
c = √85
c = 9.22