3 years ago

Select the story problem that this equation represents 1/2 / 2/5

Mathematics

1 answer:

grin007 [14]3 years ago

8 0

Answer:

d is your answer

Step-by-step explanation:

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Answer:

c. 15in

Step-by-step explanation:

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2 years ago

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A construction company purchased some equipment costing $300,000. The value of the equipment depreciates

goldfiish [28.3K]

Answer:

$11.9\ years$

Step-by-step explanation:

we know that

The formula to calculate the depreciated value is equal to

$V=P(1-r)^{x}$

where

V is the depreciated value

P is the original value

r is the rate of depreciation in decimal

x is Number of Time Periods

in this problem we have

$P=\$300,000\\r=14\%=14/100=0.14\\V=\$50,000$

substitute the values and solve for x

$50,000=300,000(1-0.14)^{x}$

$(50,000/300,000)=(0.86)^{x}$

$(5/30)=(0.86)^{x}$

Apply log both sides

$log(5/30)=(x)log(0.86)$

$x=log(5/30)/log(0.86)$

$x=11.9\ years$

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3 years ago

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6. Solve the equation x2 = 80.

jonny [76]

Answer:

Step-by-step explanation:

80/2=40

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Five people each take the same number of candies from a jar. Then a group of seven people does the same: in so doing they empty

Vika [28.1K]

Answer:

Step-by-step explanation:

Let first group of people take x candies each

and second group of people take y candies each

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5x +7y = 239 (needed to find positive solution of x,y)

now take x=38, y =7

or x=31, y= 12

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Solve the problem 4y+3=19 using mental math

Liula [17]

Answer:

y=4

Step-by-step explanation:

4y + 3 =19

4y = 16

y= 4

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