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Sever21 [200]
2 years ago
6

Sally invests £8000 in a savings account.

Mathematics
1 answer:
lisabon 2012 [21]2 years ago
3 0

Answer:

£8934.24

Step-by-step explanation:

100 + 2.8 = 102.8

102.8 / 100 = 1.028

8000 x 1.028^{4} = £8934.24

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Answer with explanation:

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1. No more than 8 songs

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3 years ago
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Show me how to make 33 in four different ways
tamaranim1 [39]
30+3
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(sorry if these didn't help i'm a beginner and i'm in 7th grade)


7 0
3 years ago
Tina is saving to buy a notebook computer. She has two options. The first option is to put $500 away initially and save $10 ever
Alexxandr [17]

Answer:

Tina would save the same amount using either option after 20 months.

With either option, Tina would save $700.

Step-by-step explanation:

This problem can be modeled by a first order equation:

Where Tina's saved money after n months is:

S(n) = S(0) + rn, where S(0) is the money put away initially and r is how much she saves every month.

The first option is to put $500 away initially and save $10 every month, so:

S_{1}(n) = 500 + 10n

The second option is to put $100 away initially and save $30 every month, so:

S_{2}(n) = 100 + 30n

After how many months would Tina save the same amount using either option?

It will happen at the month n in which S_{1}(n) = S_{2}(n), so:

S_{1}(n) = S_{2}(n)

500 + 10n = 100 + 30n

500 - 100 = 30 - 10n

400 = 20n

20n = 400

n = \frac{400}{20}

n = 20.

Tina would save the same amount using either option after 20 months.

How much would she save with either option?

We can choose S_{1}(20) or S_{2}(20), since they are equal

S_{1}(20) = 500 + 10(20) = 500 + 200 = 700

With either option, Tina would save $700.

3 0
3 years ago
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dimulka [17.4K]

Uhhh I think it'd be C and... probably A or D. I'm not 100% sure, but if I was taking the test, that is what I would choose.

5 0
3 years ago
If f(x) = 2x and g(x) = x - 3, what is the value of f(g(5))?
Vesna [10]

Answer:

g(5)=5-3=2

f(2)=2×2=4

7 0
2 years ago
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