Answer:
Step-by-step explanation:
Let the number of cans be x
<u>5% of x is 61, solve the equation below for x:</u>
- x*0.05 = 61
- x = 61/0.05
- x = 1220 cans
Debra will travel 50 miles in 25 minutes
Step-by-step explanation:
Given
distance = 2 miles
Time = 1 minute
Other time = 25 minutes
We can use the proportions to find the number of miles debra will travel in 25 minutes
So,

Hence,
Debra will travel 50 miles in 25 minutes
Keywords: Proportion, rate
Learn more about proportion at:
#LearnwithBrainly
7 % of cost price is 2.80 , What about 1%?
7 = 2.80
1 = x (where x is the price value of 1% in dollars)
We simplify the above equation, so:
7 × x = 2.8 × 1 → 7x = 2.8 → x = 2.8 / 7 → x = 0.4 dollars
We know that 100% represents the whole price,
so if 1% is 0.4 dollars, then 100% will be 0.4 × 100 = 40 dollars
Therefore the store charged $40 dollars for the helmet before tax
a. Recall that

For
, we have

By integrating both sides, we get

If
, then

so that

We can shift the index to simplify the sum slightly.

b. The power series for
can be obtained simply by multiplying both sides of the series above by
.

c. We have

