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tino4ka555 [31]
3 years ago
13

Roberto deposited $5,000 into an account with 4.2% interest, compounded monthly.

Mathematics
1 answer:
Marina86 [1]3 years ago
8 0

Answer:

$50,581.9

Step-by-step explanation:

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Phyllis invested $10,500 a portion earning a simple interest rate of 9(1/5)% per year and the rest earning a rate of 9% per year
Alenkinab [10]
Total investment  = $10,500

Let x = amount of first investment, and y the amount of the second investment.

First investment:
Interest rate = 9 (1/5)% = 0.092
Earned interest = 0.092x

Second investment:
Interest rate = 9% = 0.09
Earned interest = 0.09y

Total interest after one year is $957.00, therefore
0.092x + 0.09y = 957       
 or
1.0222x + y = 10633.33   (1)

Also,
x + y = 10500               (2)

Subtract (2) from (1).
0.0222x = 133.33
x = 6000
y = 10500 - x = 4500

Answer:
The first investment is $6,000 at 9 (1/5)% rate;
The second investment is $4,500 at 9% rate.

7 0
3 years ago
The access code for a car’s security system consists of five digits. The first digit cannot be zero. How many different codes ar
Leviafan [203]

Answer:

45,000 different codes

4 0
4 years ago
I have completed everything except for the last box. Can someone please help me on the last box? Thank you for your help!
Lera25 [3.4K]

Answer:

2.5\%

Step-by-step explanation:

From the Empirical Rule, 95% of the data shown falls between 63 and 95. The other 5% is evenly distributed to each side (since the distribution is bell-shaped), hence there being \boxed{2.5\%} of scores less than 63.

The directions say to give the approximate percentage which is vague. You may have to input 3\% if it does not accept 2.5\%.

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3 years ago
Write the inverse of the given conditional statement
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Answer:

If I live in South Carolina then I live in Charleston

Step-by-step explanation:

Just switch them

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The lunch lady has 8 pounds of lasagna left over. If she makes 1/5-pound servings, how many servings of lasagna can she serve wi
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40 servings I think............
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