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Blababa [14]
3 years ago
14

Is the expression 3(x+1 1/2)-3 equivalent to 3x+ 1 1/2

Mathematics
1 answer:
stira [4]3 years ago
7 0

Answer:

Yes

Step-by-step explanation:

3(x+5.50)-3

3x+16.50)-3

-3(3x+16.50)

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David wants to fill his backyard swimming pool. His garden hose delivers 40 gallons in 5 minutes. How many gallons of water will
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Answer:

Part a) 160\ gallons

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Step-by-step explanation:

Part a) How many gallons of water will be in the pool after 20 minutes?

we know that

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\frac{40}{5}\frac{gallons}{minutes}=\frac{x}{20}\frac{gallons}{minutes} \\ \\x=40*20/5\\ \\x=160\ gallons

Part b) How many gallons of water will be in the pool after 1 hour

we know that

1 hour = 60 minutes

Using proportion

\frac{40}{5}\frac{gallons}{minutes}=\frac{x}{60}\frac{gallons}{minutes} \\ \\x=40*60/5\\ \\x=480\ gallons

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3 years ago
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Divide 216 into the ratio 1;5
SashulF [63]

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1:5

Step-by-step explanation:

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Am I correct? If so why?
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