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Blababa [14]
3 years ago
13

Jack earns $40 in interest each year on an investment. What is his interest rate if his principal was $200

Mathematics
1 answer:
Fudgin [204]3 years ago
8 0

Answer:

The interest rate is 20%.

Step-by-step explanation:

In order to calculate the interest rate, we need to compute how many percents the value he recieves is related to the total he invested. In this case he recieves 40 every year and he invested 200, to calculate that we will apply a rule of three. We have:

$200 -> 100%

$40 -> x%

200/40 = 100/x

200*x = 40*100

200*x = 4000

x = 4000/200 = 20

The interest rate is 20%.

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4vir4ik [10]

Answer:

a) 2/5

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Step-by-step explanation:

There are 20 people total.

a is that the chosen child is a girl.

2 + 6 = 8, --> there are 8 girls --> simplify

8/20 = 4/10 = 2/5

b is the probability that the chosen child is a left-handed girl, --> there are 2 left-handed girls --> 2/20 --> simplify to 1/10

And thus, we have our answers.

8 0
3 years ago
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Alex777 [14]

Hey there!

Answer:

CD = 3.

Step-by-step explanation:

Since the triangles are similar, we can set up a ratio to determine the other side-lengths:

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Cross multiply:

6(12-x) = 18x

Distribute the '6':

72-6x = 18x

Combine like terms and simplify:

72 = 24x

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Therefore, the length of CD is 3.

5 0
3 years ago
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Artemon [7]

Answer:

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Step-by-step explanation:

x= width

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3 years ago
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Here is it


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It would be

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3 years ago
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