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3 years ago

How do you do this, I don’t understand it

Mathematics

2 answers:

Otrada [13]3 years ago

7 0

For the first line start at -1 and from there go up to and to the right three
for the second line on nuber one start at 4 and down 1 and to the left 1

nignag [31]3 years ago

3 0

You hav to find out what the y stand for

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Answer:

She added 83, instead of subtracting it.

In the second step it shows she adds it. Which is incorrect.

The correct answer is 27

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Alekssandra [29.7K]

Answer:

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3 years ago

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The perimeter of the big wheel of a bicycle is 9 cm longer than the perimeter of the front wheel. On the road of 120 cm, the big

beks73 [17]

Answer:

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Question

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A boy is cycling such that the wheels of the cycle are making 140 revolutions per minute. If the diameter of the wheel is 60cm, calculate the speed per hour with which the boy is cycling.

Easy

Solution

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Radius of the wheel =r=

=30 cm

Circumference of the wheel =2πr=2×

×30=

1320

Distance covered in 1 revolution =

1320

Distance covered in 140 revolutions =

1320

×140=26400 cm=264 m=

1000

264

Distance covered in one minute = Distance covered in 140 revolutions =

1000

264

Distance covered in 1 hour =

1000

264

×60=15.84 km

Hence, the speed with which the boy is cycling is 15.84km/hr.

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2 years ago