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pishuonlain [190]
3 years ago
13

1.) (7.RP.3) Tracy started a savings account that is set up so that the simple interest earned on the investment is moved into a

separate account at the end of each year. Tracy invests $5,000 at 4.5%, what is the total simple interest accumulated in the checking account after 2 years? Show your work. *
$4.50









$45









$450









$4,500









$45,000

2. (7.RP.3) Sylvia bought a 6-month $1900 certificate of deposit. At the end of 6 months, she received a $209 simple interest. What rate of interest did the certificate pay? *
Mathematics
1 answer:
amid [387]3 years ago
3 0
<h3>Answer:</h3>

$450

<h3>Step-by-step explanation:</h3>

Each year, the amount of interest earned is ...

... 4.5% × $5000 = $225

After 2 years, a total of ...

... $225 × 2 = $450

has been transferred.

_____

<em>Comment on percentages</em>

Of course, you know that 4.5% = 4.5/100 = 45/1000 = 0.045.

You can think of the % symbol as a fancy (shorthand) way to write /100. (Likewise, the ‰ symbol means /1000.)

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Write the first four terms of the sequence defined by the given rule: f(n)=n+4
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Answer:

5, 6, 7, 8

Step-by-step explanation:

f(n) = n + 4

f(1) = 1 + 4 = 5

f(2) = 2 + 4 = 6

f(3) = 3 + 4 = 7

f(4) = 4 + 4 = 8

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3 years ago
Cos80°.cos10°-sin80°.sin10°​
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Step-by-step explanation:

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here are the steps:

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have a good day :)

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3 years ago
Numeric values get larger as you travel to the right of the number line<br> true or false
aivan3 [116]

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4 years ago
stella has twice as many fish in her tank as catherine .catherine has twice as many fish in her tank as rita .they have 70 fish
tiny-mole [99]
Well, we do not know how many fish Rita has, so lets represent that with y. Anyway, it says that catherine has twice as many fish as Rita. So that will be 2y. And Stella has twice as many as catherine, so that will be 2 x 2y. And that will be 4y. So Ruth has y, catherine has 2y and stella has 4y. And the total is 70. So that means that the number of fishes added together will be 70. That can be represented as;
y + 2y + 4y = 70
y is the same as 1y. And when you add y + 2y + 4y, you will get 7y. So
7y=70
Divide the both sides by 7. That will be;
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