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den301095 [7]
3 years ago
13

Rudy invested $2460 in a money market account for 3 and 1/2 years. He earned $452 in simple interest. Which best represents the

annual interest rate?
A. 3 and 3/5 percent
B. 5 and 1/4 percent
C. 5 and 3/4 percent
D. 6 and 2/5 percent
Mathematics
1 answer:
antiseptic1488 [7]3 years ago
6 0

Answer:

B. 5 and 1/4 percent

Step-by-step explanation:

Step one:

given

principal= $2460

time= 3 and 1/2 years= 3.5 years

SI= $452

Required

The rate

Step two:

we know that

SI= PRT/100

substituting our data we have

452= 2460*R*3.5/100

452=8610R/100

cross multiply

452*100= 8610R

divide both sides by 8610

45200/8610= R

R= 5.25%

R= 5 and 1/4 percent

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Leya [2.2K]

Answer:

$0.90

Step-by-step explanation:

\frac{4}{10}=0.4

3 dozen = 36

\frac{36}{0.4} =\frac{y}{0.1}

0.4 × y = 36 × 0.1

0.4y = 3.6

0.4y ÷ 0.4 = 3.6 ÷ 0.4

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5 0
3 years ago
What is the quotient of 78.8/8
daser333 [38]
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6 0
3 years ago
PLES HELP ME June knits scarves and hats for kids in her community. She has knitted six less than twice as many hats as scarves,
Thepotemich [5.8K]
Let x = hats she knitted

Less than means to subtract and it’s an order switcher so it would be

2x - 6 = 78

First step: Add six to both sides -6 + 6 = 0 6 + 78 = 84

2x - 6 = 78
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2x = 84

Second step: Divide the coefficient on both sides, two is the coefficient

2x/2 = x
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Therefore, the answer is x= 42
6 0
1 year ago
The distance between two towns is 120 km these are approximately 80 km in 5 miles which measurement is closer to the number of m
Helga [31]

Answer:

7.5 miles

Step-by-step explanation:

5 miles in 80 km

Total distance = 120 km

120- 80= 40 km

80 km = 5miles

1 km = 5miles/ 80km

120 km = 5/80 * 120 km = 7.5 miles

This is called unitary method. First we find 1 km by dividing the miles with the number of km and then multiply the number of km to find the total number of miles.

Total distance = 120 km

120- 80= 40 km

if there are 5 miles in 80 km then there will be half of the miles in half of the km . So there will be 2.5 miles in 40 km .

So the total number of miles would be

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120 km = 7.5 miles

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3 years ago
Answer please and thank you
USPshnik [31]

Answer:

72

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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