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Alexandra [31]
4 years ago
10

A mother earned $​8750.00 from royalties on her cookbook. She set aside​ 20% of this for a down payment on a new home. The balan

ce will be used for her​ son's future education. She invests a portion of the money in a bank certificate of deposit​ (CD account) that earns​ 4% and the remainder in a savings bond that earns​ 7%. If the total interest earned after one year is ​$420.00​, how much money was invested at each​ rate?
Mathematics
1 answer:
Masteriza [31]4 years ago
5 0

The problem statement is not clear regarding which money is invested. We will assume it is the 80% of $8750 that is set aside for future education. That amount is

... 0.80 × $8750 = $7000

If x represents the amount invested at 7%, then the total interest earned is

... (7000 -x)×4% + (x)×7% = 420

... 280 +0.03x = 420

... x = 140/0.03 ≈ 4666.67

$4666.67 was invested at 7%.

$2333.33 was invested at 4%.

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6 0
3 years ago
What are all the factors of 18?
ryzh [129]

Answer:

2,3,6,9,18,1

Step-by-step explanation:

7 0
3 years ago
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What are the minimum and maximum distances that Morgan’s dog may be from the house? (Algebra ll) *URGENT*
Mashcka [7]

Given:

The minimum and maximum distance that the dog may be from the house can be found by using the equation:

|x-500|=8

To find:

The minimum and maximum distance that the dog may be from the house.

Solution:

We have,

|x-500|=8

It can be written as:

x-500=\pm 8

Adding 500 on both sides, we get

x=500\pm 8

Now,

x=500+8 and x=500-8

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6 0
3 years ago
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IgorLugansk [536]

Answer:

Choice 3) AB = 4.09

Step-by-step explanation:

sin 17° = AB/14

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7 0
3 years ago
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150 inches
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