Answer:
Here we have the case where:
"one chip is eaten in 1/4 mins."
(that means unit rate, the amount of a given variable that we need to do a unit of another variable)
Then the unit rate would be:
4 chips per minute.
Or, in a more mathematical way to write this:
4 chips/min.
Now we could write this in other units, for example.
We know that 1 min = 60s.
Then we have that (1/4) min = 60s/4 = 15s.
Then we have the unit rate:
1 chip every 15 seconds, or:
(1/15) chips/second.
Now, the variable in this case is time, t = time, let's multiply bot our unit rates by the same amount of time, and see if we have the same outcome.
Let's use t = 2 min.
1) (4chips/min)*2min = 8 chips.
2) ((1/15) chips/second)*2min
First, 2 min = 120 seconds.
((1/15) chips/second)*2min = ((1/15) chips/second)*120seconds = 8 chips.
So both unit rates are equivalent.
Answer:
40% as a decimal is 0.4
40% as a fraction is 2/5
Step-by-step explanation:
Let's go over each of these step by step.
First, let's see 40% as a fraction.
Since 40% is out of 100%, we can rewrite that as 40/100.
If you want to simplify it, let's do the following.
40/100
Divide both sides by 20, and you'll end up with:
2/5.
Now, let's do 40% as a decimal.
This is pretty simple.
40% is 40/100 as said before, and to find it as a decimal,
let's divide 40 and 100.
40 divided by 20 = 0.4
Therefore, we can conclude the following:
40% as a fraction is 40/100, or 2/5.
40% as a decimal is 0.4
Hope this helped! :)
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x =
Answer:
x-4+3x+100=180....by angle sum property
4x=84
x=21
Answer:
Step-by-step explanation:
(a). The explanatory variables are the antioxidant group, the response variable is the result of the rate of colon cancer
(b)The design of the experiment is stratified Random sampling. I'll suggest there divided into equal group of 216 each.
(c). Double blind is when the people subjected to the experiment are not in the know if they're given placebo or the real antioxidant
(d) No significant difference mean, there is no convincing relationship that those that engage in using antioxidant have reduced colon cancer rate.
(e) Awareness of its history in family, age also.
b. Determine the total amount paid over the term of the loan.
c. Of the total amount paid, what percentage is paid toward the principal and what
percentage is paid for interest.
a. The monthly payment is $
(Do not round until the final answer. Then round to the nearest çent as needed.)
Answer: 1,389.58
M is the monthly payment.
P is the principal loan amount (in this case, $250,000).
r is the monthly interest rate (annual rate divided by 12). For an APR of 4.5%,
=
0.045
12
r=
12
0.045
.
n is the total number of payments (number of years multiplied by 12). For 25 years,
=
25
×
12
n=25×12.