50 yards of tape is needed to pack and ship 100 packages. You have roll of tape that is 2000 inches long. About how many yards d
2 answers:
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Answer:
Rs 328
Step-by-step explanation:
Find the <u>principal</u> amount invested.
<u>Simple Interest Formula</u>
I = Prt
where:
- I = interest earned
- P = principal
- r = interest rate (in decimal form)
- t = time (in years)
Given:
- I = Rs 320
- r = 5% = 0.05
- t = 2 years
Substitute the given values into the formula and solve for P:
⇒ 320 = P(0.05)(2)
⇒ 320 = P(0.1)
⇒ P = 3200
<u>Compound Interest Formula</u>
where:
- I = interest earned
- P = principal amount
- r = interest rate (in decimal form)
- n = number of times interest applied per time period
- t = number of time periods elapsed
Given:
- P = 3200
- r = 5% = 0.05
- n = 1 (annually)
- t = 2 years
Substitute the given values into the formula and solve for I:
Therefore, the compound interest on the same sum for the same time at the same rate is Rs 328.
Here is the equation: 
⇒
You need to get "x" by itself so minus 3 from each side
⇒ 
⇒ 
Divide 8 by 2
÷ 
x=4
So each 4 is equivalent to 4
Lets check:
⇒ 
⇒ 
So that means that Marcus practiced the piano for 4 hours and Donnel practiced for 7
You need to get "x" by itself so minus 3 from each side
Divide 8 by 2
x=4
So each 4 is equivalent to 4
Lets check:
So that means that Marcus practiced the piano for 4 hours and Donnel practiced for 7