3 years ago

How do you find the volume of a cardboard box this is 12 cm long, 2cm wide and 3 cm high?

Mathematics

1 answer:

levacccp [35]3 years ago

7 0

V = 12 × 2 × 3 = 72 cm3
Hope this helps!

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A rectangle has a perimeter of 60 units and one side of length 18 units. If it can be determined, what are the lengths, in units

ladessa [460]

Answer:

option B. 18,12,12

Step-by-step explanation:

perimeter= 60 units

(consider a rectangle with sides a,b,c & d in order)

a= 18 units (given)

c=18 units (since opp. sides of a rectangle are equal)

now the remaining length= 60-(18+18)

= 60 - 36

= 24

so the sum of the remaining sides, ie, b+d= 24

since b and d are equal (opp.sides of a rect.)

b=d=24/2=12

therefore, b=12; c=18; d=12

i really hope i'm clear...but if i'm not then please do ask...

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3 years ago

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Two mechanics worked on a car. The first mechanic worked for 5

ArbitrLikvidat [17]

<u>Answer:</u>

$50 and $115

<u>Step-by-step explanation:</u>

We know that,

the sum of the two rates = $165 per hour

Let x and (165 - x) represent the $/hour of the 15hr and 5hr mechanics respectively.

Then combining their charges together to get:

$(x*15)hour+(165-x)*5 hour=1325$

Solving for x to get:

$15x-5x+825=1325$

$10x=500$

$x=50$

So the rate charged per hour by one mechanic is $50 and for the other mechanic = $(165-50)=$ $115.

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3 years ago

Math problem, please help:)

alukav5142 [94]

3_/—- 5 i’m pretty sure

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Is the surface a rectangle?? If so, then the surface area would be 35

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garik1379 [7]

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