2 years ago

Need help with 17 pre college

Mathematics

1 answer:

Ratling [72]2 years ago

6 0

No because if you plug in 4 for x and 5 for y you get -4 not 36

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5 cm<br> 4 cm<br> 6 cm<br> 3D rectangle

Sergio [31]

Answer:

120

Step-by-step explanation:

I'm assuming your looking for the area (if not pls tell me and I will make corrections)

So to get the area of a 3D shape you multiply the length, width, and height

5×4×6=120

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What is the sum of twenty and thirty

bonufazy [111]

Fifty , 50 20+30=50, not sure if its asking much else

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alexira [117]

Answer:

The width is 35 cm.

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Step-by-step explanation:

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3 years ago

I need awnsers please

romanna [79]

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5 0

2 years ago

Two grandparents want to pick up the mess that their granddaughter had made in her playroom. One can do it in 15 minutes working

Crank

Answer:

6 2/3 minutes

Step-by-step explanation:

Their rates in "jobs per hour" are ...

(60 min/h)/(15 min/job) = 4 jobs/h

and

(60 min/h)/(12 min/job) = 5 jobs/h

So, their combined rate is ...

(4 jobs/h) + (5 jobs/h) = 9 jobs/h

The time required (in minutes) is ...

(60 min/h)/(9 jobs/h) = (60/9) min = 6 2/3 min

Working together, it will take them 6 2/3 minutes.

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