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Nina [5.8K]
3 years ago
14

Ms. Wilson invested ​$34000 in two​ accounts, one yielding 8​% interest and the other yielding 9​%. If she received a total of​

$2910 in interest at the end of the​ year, how much did she invest in each​ account?
Mathematics
1 answer:
Digiron [165]3 years ago
3 0

Answer:

Amount invested at 8 % rate = x = $ 15000

Amount invested at 9 % rate = 34000 - x = 34000 - 15000 = $ 19000

Step-by-step explanation:

Total Amount = $ 34000

Let amount invested at 8 % rate = x

Amount invested at 9 % rate = $ 34000 - x

Total interest = $ 2910

2910 = \frac{x (8) (1)}{100} + \frac{(34000-x) (9) (1)}{100}

291000 = 8 x + 306000 - 9 x

x = 306000 - 291000

x = 15000

So  amount invested at 8 % rate = x = $ 15000

Amount invested at 9 % rate = 34000 - x = 34000 - 15000 = $ 19000

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Alchen [17]
Example: For every 3 boys, there are 4 girls.

Ratio: 3:4 also 3/4

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Example question: If there are 3 boys for every 4 girls and there are 27 boys in the class, how many girls are there?

How to set up the ratio:

3 27
— = —
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Solve it?

[Cross Multiply]

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[Divide]

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How to check it?

Reduce 27/36 and see if it equals 3/4

OR

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8 0
3 years ago
Howard cuts 54 centimeters off of a 1- meter board. how much of the board does Howard have left?
OLEGan [10]
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46 centimeters
0.46 meters
46% of the original board
23/50 of the original board
6 0
4 years ago
a cereal box is 19 cm long 6 cm wide and 28 cm cm high. an artist is trying to create a design for the box. what is the surface
monitta
Do 19 x 6 x 2 = 228
then 28 x 19 x 2 =  1064
then 28 x 6 x 2 = 336
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6 0
3 years ago
Please help! Will give brainliest. 15 points
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Answer:

See Explanation

Step-by-step explanation:

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6 0
3 years ago
A tank initially contains 200 gallons of brine, with 50 pounds of salt in solution. brine containing 2 pounds of salt per gallon
avanturin [10]

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O.K., now, let's try YOUR problem. 225000 gallons and 7.5 gallons per cubic feet. How many cubic feet do you need? Must be 225,000/7.5 = 30,000 cubic feet

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l x w x h. We now know the volume must also be 30,000

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you should be able to take it from there.

Problem #2

We approach it the exact same way.

It's too hard as stated. Let's make up an easier problem.

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Now, how many cubic feet in the cylinder? Well you (should) know that the volume of a cylinder is:

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Now we have a bit of a problem. You didn't tell me how high the tank is. Let us say it is 10 feet.

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3 0
3 years ago
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