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Nonamiya [84]
3 years ago
10

You want to put some money in a simple interest account. It pays 8% interest annually for 2 years. You would like to earn $500 i

n interest. How much money do you need to put in?
Mathematics
2 answers:
Arte-miy333 [17]3 years ago
4 0
I = PRT
500 = P x 0.08 x 2
500 = P x 0.16
(Divide both sides by 0.16)
P = 500/0.16
Principle = 3,125
kati45 [8]3 years ago
3 0
Rate p.a. = 8%
Time = 2 years
SI     = $ 500
Principal = ??
Principal = SI*100/ R*T
               = 500*100/8*2
               = 50000/16
               = $ 3125

Therefore, the amount you put in is $ 3125
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3 years ago
TW¯¯¯¯¯¯¯¯¯=14.6, CW¯¯¯¯¯¯¯¯¯=6, TU¯¯¯¯¯¯¯=21.2. Find the value of VW¯¯¯¯¯¯¯¯¯.
pogonyaev

TW x WU = CW x VW

Fill in the known values:

WU = TU - TW = 21.2 - 14.6 = 6.6

14.6 x 6.6 = 6 x VW

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8 0
3 years ago
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The price of a microwave oven went up from $75 to $90; then went on sale for $57. What is the percent decrease from the original
Arisa [49]

Answer:

<u>The percent decrease of the microwave from the original price to the sale price is 24%</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Original price of a microwave = $ 75

Mark-up price of the microwave = $ 90

Sale price of the microwave = $ 57

2. What is the percent decrease from the original price to the sale price?

For answering this question we will use the Direct Rule of Three this way:

Price         Percentage

75                 100%

57                   x

75x = 57 * 100

75x = 5,700

x = 5,700/75

x = 76

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<u>The percent decrease of the microwave from the original price to the sale price is 24%</u>

5 0
3 years ago
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Reil [10]

Answer:

x = -31/4  or x = 17/4

Step-by-step explanation:

|4x + 7| − 4 = 20

⇔ |4x + 7| − 4 + 4 = 20 + 4

⇔ |4x + 7| = 24

⇔ 4x + 7 = 24  or 4x + 7 = -24

⇔ 4x = 24 - 7 or 4x = -24 - 7

⇔ 4x = 17 or 4x = -31

⇔ x = 17/4 or x = -31/4

6 0
2 years ago
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