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3 years ago

10

David and his TWO brothers deliver papers every morning.Each one of them can deliver a paper every two minutes,and between the t

hree of them they deliver 147 paper.How many long does is take to deliver the paper.

2 answers:

melamori03 [73]3 years ago

5 0

To deliver 147 papers among the three of them, which each of them delivers a paper every 2 minutes. so every 2 minutes 3 papers are delivered ok so you will need to divide 147 by the number of papers deliver in 2 minutes so that would give us the equation 147/3 and times it by the number of minutes it takes for each person to deliver 1 paper which is 2 so 147/3=49*2=98 so it takes 98 minutes for all three of them to deliver 147 papers

Gre4nikov [31]3 years ago

3 0

73.5

I believe you need to divide

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Answer:

$Tower 4 = 23.9cm$

Step-by-step explanation:

Given

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Tower two = 18.3 cm

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Required:

Height of the 4th tower

Represent a cube by X; a cylinder by Y and a hexagonal prism by Z

Tower one, a cube with a hexagonal prism = X + Z = 15.6

Tower two, a cube with a cylinder = X + Y = 18.3

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$X + Z = 15.6$ ----- Equation 1

$X + Y = 18.3$ ----- Equation 2

$Z + Y = 13.9$ ----- Equation 3

Subtract equation 1 from 2

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$Y - Z = 2.7$ ---- Equation 4

Add Equation 4 to Equation 3

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$Y = 8.3cm$

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$X + 8.3 = 18.3$

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$X = 18.3 - 8.3$

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$Z + 8.3 = 13.9$

Subtract 8.3 from both sides

$Z + 8.3 - 8.3 = 13.9 - 8.3$

$Z = 13.9 - 8.3$

$Z = 5.6cm$

So, we have that

$X = 10cm$

$Y = 8.3cm$

$Z = 5.6cm$

The question states that the 4th tower is made up of the three shapes;

This implies that;

$Tower 4 = X + Y + Z$

$Tower 4 = 10cm + 8.3cm + 5.6cm$

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