Okay. So the formula for the amount of time is I / Pr, meaning you multiply the principal and the rate in decimal form together, and you divide the amount of interest by that number. The formula for finding the interest rate is I / Pt, meaning you multiply the principal and time, and the you divide the amount of interest by that number. With a decimal, be sure to multiply by 100 to get the whole percentage. With that being said, if you solve this correctly, here are your answers.
Principal: $6,631
Interest Rate: 8.05%
Time: 33 months
Simple Interest: $1,467.94
Principal: $884,706
Interest Rate: 5.42%
Time: 40 months
Simple Interest: $159,931
Note: For times in months, you'll have to do some conversion into decimals, but you know that 12 months equal 1 year, so you can divide the time period by 12. For the second part, I happened to get 5.43% when I worked it out, but a calculator happened to round off to 5.42%, so it's a bit confusing, but those are the answers.
Answer:
70 amps
Step-by-step explanation:
The current I is inversely proportional to the resistance R
I=k/R (k is the constant of proportionality)
A) I=210 amperes
R=4 ohms
I=k/R
k=I×R
k=210×4=840
B) R=12 ohms
k=840
I=k/R
I=840/12=70 amperes
Answer:
Exact Form:
−19/15
Decimal Form:
−1.26
Mixed Number Form:
−1 4/15
Step-by-step explanation:
Answer:
the first one is 3
second one is 7
third one -2
fourth one -3
Step-by-step explanation:
132 in.3
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