Answer:
All you have to do is write an expression, you don't need to answer it.
Step-by-step explanation:
1. n-9
2. 3+p
3. (7*a)+2
i hope you understand
Answer:
18x - 12
Step-by-step explanation:
multiply each term in the parenthesis by the 6 outside ( distributive law)
6(3x - 2)
= (6 × 3x ) + (6 × - 2) = 18x +(- 12) = 18x - 12
We're given that
which means
When we subtract these, several terms cancel:
So the difference quotient is
and since <em>h</em> ≠ 0, we can cancel it out to end up with
Now plug in <em>x</em> = 8 (this could have been done at any prior point):
The correct question is
<span>Sam ran 63,756 feet in 70 minutes. What is Sam's rate in miles per hour? (there are 5,280 feet in one mile
we know that
one mile is equal to 5,280 ft
and
one hour is equal to 60 minutes
so
step 1
convert ft to miles
63,756/5,280=12.075 miles
step 2
convert minutes to hours
70/60=1.1667 hours
step 3
find the rate in miles/hours
12.075 miles/1.1667 hours=10.35 miles/hour
the answer is
10.35 miles/hour
</span>
Let the unknown number be x then given,
(4/5)x - (3/4)x = 4
(16x - 15x)/20 = 4
x/20 = 4
x=80
