Answer:
6 hours
Step-by-step explanation:
6.50 - 2.00 = 4.50
4.50 ÷ 0.75 = 6
when you add two negatives its just like regular number, -3+-5=-8 same as 3+5=8
From your equation, you can see that you have a difference of two cubes (aka two cubes being subtracted): 64, which is
, and
.
There is rule for the difference of two cubes:
The difference of two cubes is equal to the difference of the cube roots times a binomial, which is the sum of the squares of the roots plus the product of the roots.
That sounds pretty confusing, but it's much easier to understand when put mathematically. Let's say our two cubes are
and
. The difference of those two cubes is:
In our problem, a = 4 (since
= 64) and b = y (since
. Plug these values into the rule to find the factor of
:
-----
Answer:
Answer:
She will ride an average of 5 miles
Step-by-step explanation:
To calculate the average, add all the values together and divide by the amount of values:
3 + 5 + 4 + 8 = 20
20 ÷ 4 = 5
Average of 5 miles