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Minchanka [31]
3 years ago
14

What round number is previous to 28?

Mathematics
1 answer:
Kruka [31]3 years ago
5 0
30 is the answer... I think
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I need help, i cant do this easly i suck at math so was wandering if yall can give me an answer for these or tell me how to do i
Scorpion4ik [409]
On all of them sorry but if i dont know wich one to do then....
4 0
3 years ago
Read 2 more answers
BRAINLIEST ANSWER GIVEN Without actually solving the​ problem, choose the correct solution by deciding which choice satisfies th
pochemuha

Answer:

<h2>length = 6 feet</h2><h2>width = 4 feet</h2>

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where l is the length

w is the width

The length of the rectangle is 2 feet longer than the width is written as

l = 2 + w

Perimeter = 20feet

So we have

20 = 2( 2 + w ) + 2w

20 = 4 + 2w + 2w

4w = 16

Divide both sides by 4

w = 4

Substitute w = 4 into l = 2 + w

That's

l = 2 + 4

l = 6

<h3>length = 6 feet</h3><h3>width = 4 feet</h3>

Hope this helps you

4 0
3 years ago
Read 2 more answers
Donna guessed there were 400 jellybeans in a jar. There were really 480 jellybeans. What was her percent of error?
dimulka [17.4K]

Answer:

400 +480 =880

Step-by-step explanation:

0+0=0

8+0=8

4+4=8

880

6 0
3 years ago
A certain college graduate borrows 5510 dollars to buy a car. The lender charges interest at an annual rate of 17%. Assuming tha
Diano4ka-milaya [45]

Answer:

His annual payment rate required to pay off the loan in 7 years is k = $2362.41 a year.

He has to pay $11026.85 in interest

Step-by-step explanation:

The first step to solve this problem is find how much the student will have to pay for the car. So, we have to find how much the present value of the car(in $) will be worth in 7 years. This is a compound interest problem:

The compound interest formula is given by:

A = P(1 + \frac{r}{n})^{nt}

Where A is the amount of money, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per unit t and t is the time the money is invested or borrowed for.

In this exercise, we have:

A = The value we want to find

P = The initial value = 5510

r = 0.17

n = 1

t = 7

So

A = 5510(1 + \frac{0.17}{1})^{7}

A = $16536.85

In a seven year period, he has to pay $16536.85. Per year, he has to pay a rate k of:

k = \frac{16536.85}{7} = $2362.41

His annual payment rate required to pay off the loan in 7 years is k = $2362.41

How much does he pay in interest?

His loan is $5510 and he has to pay $16536.85. So, in interest, he has to pay 16536.85 - 5510 = $11026.85

5 0
3 years ago
Which situation can be modeled by an exponential growth function?
Whitepunk [10]

Answer:

I think the answer would be B) a concert allows 100 people to enter every 20 minutes

8 0
3 years ago
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