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sweet [91]
3 years ago
6

How does multiplication relate to time conversion?

Mathematics
1 answer:
anygoal [31]3 years ago
8 0
That would first be a conversion factor is a number used to change one set of units to another, by multiplying or dividing. when a conversion is necessasry
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Scott bought a pen and received change of $4.75 in 25 coins, all dimes and quarters. How many of each kind did he receive?
dangina [55]

Answer:

He received 10 dimes and 15 quarters.

Step-by-step explanation:

Dimes = $0.10

Quarters = $0.25

Variable x = dimes

Variable y = quarters

Create a pair of linear equations:

0.10x + 0.25y = 4.75

x + y = 25

Isolate any variable, using an equation of your choice:

x + y = 25

x = 25 - y

Plug in this new value of x into the other equation:

0.10(25 - y) + 0.25y = 4.75

Use the distributive property:

2.5 - 0.10y + 0.25y = 4.75

Combine like terms:

2.5 + 0.15y = 4.75

Isolate variable y:

0.15y = 2.25

y = 15

Plug in the value of y into any equation:

x + y = 25

x + 15 = 25

Isolate variable x:

x = 10

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2 years ago
Please help in 15 min tysvm<br> !
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Answer:

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Step-by-step explanation:

5 0
3 years ago
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An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute. Write an equation to model the si
antiseptic1488 [7]
A = 30,000 - 2000m where A=altitude and m = number of minutes

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2 years ago
Monique runs 1/4 mile five times a week. How many miles does she run each week?
Hoochie [10]

Answer:

1 and 1/4 of a mile each week

Step-by-step explanation:

6 0
3 years ago
|5x|-2=18 helps love this problem please help
drek231 [11]

Answer:

x = 4

Step-by-step explanation:

The absolute value of 5x is still 5x.

5x - 2 = 18

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Divide both sides by 5

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7 0
3 years ago
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