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3 years ago

5

Kendra wants to paste 500 photographs into an album, 6 photos to a page. She figures that she will need about 100 pages. Is this

answer reasonable?

2 answers:

sdas [7]3 years ago

8 0

Yes, because after rounding six to ten, 500/10 = 100.

marusya05 [52]3 years ago

6 0

Sort of because 500/6 = 83 pages, 100 pages is a reasonable answer.

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Two gears in a machine are aligned by a mark drawn from the center of one gear to the center of the other. If the first gear has

Aleksandr [31]

Answer:

5

Step-by-step explanation:

for the first gear

revolutions/teeth

1 / 24

2 / 48

3 / 72

4 / 96

5 / 120

6 / 144

for the second gear

revolutions/teeth

1 / 40

2 / 80

3 / 120

4 / 160

<em>the two marks will meet after 120 teeth, 5 revolutions of the first gear and 3 revolutions of the second.</em>

the way to get that amount of teeth is

$24 = 2 \times 2 \times 2 \times 3 = {2}^{3} \times 3$

$40 = 2 \times 2 \times 2 \times 5 = {2}^{3} \times 5$

the Least Common Multiple equals the product of all factors, but those factors who are repeted for both numbers should be only once.

${2}^{3} \times 5 \times 3 = 120$

120 teeth are 5 revolutions for gear1 and 3 por gear2

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3 years ago

What is 218,742 rounded to the nearest hundred thousand?

xxMikexx [17]

Answer:

200,000

Step-by-step explanation:

its easy and simple lol

4 0

3 years ago

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cluponka [151]

The answer to this problem is v=-16

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3 years ago

1. Water is filling a bathtub at a rate of 7 gallons per minute. Complete the table of equivalent

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Answer:

amount of water: 7, 14, 21, 28, 35

time : 1,2,3,4,5

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3 years ago

Suppose Colby rolls the number cube 1000 times, about how many times can she expect to roll an odd number?

DiKsa [7]

Since there are 3 odd numbers ( 1, 3 and 5) and 3 even numbers ( 2, 4 and 6) in the cube ,

The chance of getting an odd number is 50/50 or 50%

So out of 1000 she will probably get 500 odd since 1000 × 0.5 (which is 50%) is 500

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4 years ago