4 years ago

PLZ HELP ASAP DENSITY WORD PROBLEMS

1 answer:

5 0

Given:
1 cubic meter of hot air can lift about 0.25 kg

We can solve this question by unity method as shown below:

0.25 kg can be lifted by air = 1 cubic meter
1 kg can be lifted by air = 1/0.25 = 4 cubic meter or air

So,

500 kg can be lifted by = 4 x 500 = 2000 cubic meter of air

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As an estimation we are told 5 miles is 8 km. Convert 2.5 miles to km.

Digiron [165]

Answer:

$4km$

Step-by-step explanation:

In order to find the answer to this question you must simply divide.

$5m=8km$

$2.5m=4km$

$8\div2=4$

$5=2.5+2.5$

$=4km$

Hope this helps

7 0

3 years ago

If the altitude of an equilateral triangle is 9 what is the perimeter

Volgvan

The angles in an equilateral triangle are 60 degrees.

sin 60 = 9 / h where h is hypotenuse ( = side of the triangle)

h = 9 / sin 60 = 10.392

Perimeter = 3 * h = 31.18 to nearest hundredth

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3 years ago

Read 2 more answers

QUESTION Learning Page AABC and APQR are similar. Find the missing side length.

melisa1 [442]

Answer:

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3 years ago

Question 10

WARRIOR [948]

Answer: