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Anni [7]
3 years ago
6

driving to and from the butterfly garden took 45 minutes each way. Students spent 3 hours in the garden and 30 minutes eating lu

nch. If the groups left school at 9:00a.m. what time did they get back
Mathematics
1 answer:
Setler [38]3 years ago
3 0
45 min add 45 min equals 1:30 add 3 3:30 add 30 equals they got vack at 1:00pm
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Find the volume for the following. Show your work and include the units.<br> 3 cm<br> 12 cm
Gemiola [76]

Answer:

12 CM is the best answer.

please thanks and follow me

7 0
3 years ago
Read 2 more answers
If $1,000 is invested at 4% simple interest, how much will the investment be worth after 2 years? Please explain how compound an
Novay_Z [31]
<h3>Answer:</h3>
  • simple interest: $1080.00
  • compounded annually: $1081.60
<h3>Step-by-step explanation:</h3>

<em>Simple Interest</em>

Simple interest is computed on the principal amount only. Each year, 4% of the principal is added to the balance. So, at the end of 2 years, the balance is ...

... $1000 + 0.04×$1000 + 0.04×$1000

... = $1000×(1 + 0.04×2) = $1000×1.08

... = $1080.00

_____

<em>Comment on the computation</em>

The added interest is the rate (per year) multiplied by the number of years. Here, that is 0.04×2×(principal amount). The formula for the simple interest earned is often seen as ...

... I = Prt . . . . . where I is the amount of interest, P is the principal amount, r is the interest rate for the time period, t is the number of time periods.

The account balance (A) with interest added is ...

... A = P + I = P + Prt

... A = P(1 +rt)

Here, the time period is years, and the rate given is an annual rate.

____

<em>Compound Interest</em>

Compound interest is computed on the <em>account balance</em> at the beginning of the period, not just the <em>principal</em> amount. After the first period, the account balance includes interest earned so far. So, the interest is earning interest. That is why it is called compounded interest.

Here, the balance at the end of the first year is the principal amount plus the interest that has earned:

... $1000 + 0.04×$1000 = $1000×1.04 = $1040.00

The balance at the end of the second year when the interest is compounded is this account balance plus the interest it earns:

... $1040 + 0.04×$1040 = $1040×1.04 = $1081.60

You may notice that the intial principal, $1000, has been multiplied by the factor 1.04 twice. Using exponents, the multiplier for a period of 2 years is 1.04×1.04 = 1.04².

_____

<em>Comment on the computation</em>

The multiplier of the account balance each year is raised to a power that is the number of years. Here, the account balance at the end of 2 years is (1+0.04)² times the principal amount. A formula that is seen for this is ...

... A = P(1 +r)^t . . . . . where A is the final account balance, P is the principal amount, r is the interest rate for the time period, and t is the number of time periods.

7 0
3 years ago
What is pie exactly equal to?
natta225 [31]
Ummmm

pie = π

i think its right
3 0
3 years ago
Read 2 more answers
Which expression is equivalent to 6⋅6⋅6?<br><br> 36<br><br> 6³<br><br> 66
devlian [24]

Answer:

6^3

Step-by-step explanation:

6^3 is the same as 6*6*6

5 0
2 years ago
Read 2 more answers
If sirius rises at 8:00 pm tonight, at what time will it rise tomorrow night, to the nearest minute?
madam [21]
We know that
The Sun makes a complete circle in the sky approximately every 24 hours, while the stars make a complete circle in the sky in 4 minutes less time, or 23 hours and 56 minutes

<span>Sirius is a star
so
</span><span>If Sirius rises at 8:00 pm tonight
then
tomorrow </span>will it rise  at ------> 8:00 pm -4 minutes----> 7:56 pm

the answer is
7:56 pm

6 0
3 years ago
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