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2 years ago

(a) A tank can be filled in 14 hours using 5 taps. If you need to fill it in 10 hours how many taps are needed?

Mathematics

2 answers:

Bond [772]2 years ago

6 0

Answer:

3.57 taps

Step-by-step explanation:

14/5 = 10/x hours (divide both sides by 10)

50/14 = x (3.57 taps)

Brainliest, please :)

sweet [91]2 years ago

5 0

Answer:

7 taps

Step-by-step explanation:

rate = 1 tank / 5 taps = 14 hr

1 tank = 70 tap-hr

70 tap -hr / x tap = 10 hr

x = 7 taps

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Step-by-step explanation:

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Which of the following statements about XY and XZ is true?

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3 years ago

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Which ratio is equivalent to 4.5? 10 15 4 10 16 20 15 8

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3 years ago

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Calculate the areas of these rectangles

kykrilka [37]

Answer:

A(a) = 24 cm²

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Step-by-step explanation:

Hi there !

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3 years ago

The object on the right is made from a square-based pyramid joined to a cuboid.

spayn [35]

Answer:

Density of steel = 80.73 gm/ $cm^3$

Step-by-step explanation:

The figure is made up of cuboid and square pyramid.

Height of cuboid, h = 9 cm

Length of cuboid, l = 6 cm

Width of cuboid, w = 6 cm

Volume of cuboid is given by the formula:

$V_{Cuboid} = l \times w \times h$

$V_{Cuboid} = 6 \times 6 \times 9\\\Rightarrow V_{Cuboid} = 324\ cm^3$

Density of Wood , $D_{Cuboid}$ = 0.68g/ $cm^3$

We know that formula of Density is:

$Density = \dfrac{Weight}{Volume}$

$D_{Cuboid} = \dfrac{W_{Cuboid}}{V_{Cuboid}}\\\Rightarrow W_{Cuboid} = V_{Cuboid} \times D_{Cuboid}$

Putting the values:

$W_{Cuboid} = 324 \times 0.68 = 220.32\ gm$

Total weight = $W_{Cuboid} + W_{Pyramid}$

970 = 220.32 $+ W_{Pyramid}$

$W_{Pyramid}$ = 749.68 gm

Volume of pyramid is given as:

$V_{Pyramid}= \dfrac{1}{3} \times \text{Area of Base} \times \text{Vertical Height}$

Base is a square with side 6 cm

$V_{Pyramid}= \dfrac{1}{3} \times 6 \times 6 \times (17 -9)\\V_{Pyramid}= 96\ cm^3$

Density of Steel/Pyramid:

$D_{Pyramid} = \dfrac{W_{Pyramid}}{V_{Pyramid}}\\\Rightarrow D_{Pyramid} = \dfrac{749.68}{96}\\\Rightarrow D_{Pyramid} = 80.73\ gm/cm^3$

5 0

4 years ago

(a) A tank can be filled in 14 hours using 5 taps. If you need to fill it in 10 hours how many taps are needed?​

(a) A tank can be filled in 14 hours using 5 taps. If you need to fill it in 10 hours how many taps are needed?