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Ugo [173]
4 years ago
14

PLZ HELP ASAP DENSITY WORD PROBLEMS

Mathematics
1 answer:
gayaneshka [121]4 years ago
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. <br> 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
3 0
3 years ago
Read 2 more answers
QUESTION<br> Learning Page<br> AABC and APQR are similar. Find the missing side length.
melisa1 [442]

Answer:

it will be 7×9 = 63 cuz when you times 4×9 =36 or 5×9 =45

3 0
3 years ago
Question 10
WARRIOR [948]

Answer:

Jur's car

Step-by-step explanation:

Jur's car's mileage= 340/12=28.3333333333

Jack's car's mileage=390/16=24.375

brainliest if you are satisfied plz

3 0
3 years ago
Read 2 more answers
_____% of 145 = 75<br> 48.3%<br> 193.3%<br> 76.5%<br> 51.7%
Pavlova-9 [17]
48.3 i’m pretty sure! your welcome:)
7 0
3 years ago
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