MATHEMATICS MIDDLE SCHOOL

What is the distance between 20 and -20?

Answers

Answer 1
Answer:

Answer:

the answer is 40

Step-by-step explanation:

20 to -20 is 40
Answer 2
Answer:

Answer:

40

Step-by-step explanation:

The distance between x and y is: |x-y|

Let '20' be 'x' and '-20' be 'y':

|20-(-20)|

Distribute '-' into '-20':

|20+20|

Add:

|40|

Determine Absolute Value:

40

The distance between 20 and -20 should be forty.

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A hose fills a hot tub at a rate of 2.58 gallons per minute. How many hours will it take to fill a 268​-gallon hot​ tub?

Answers

Answer:

1.73 hours

Step-by-step explanation:

This can be solved with proportions.

(2.58 gallons)/(1 minute) = (268 gallons)/(x minutes) \n

Cross multiply and you get:

2.58x gallons * minutes = 268 gallons * minutes\n

Divide by 2.58 gallons and you get:

x minutes = (268 gallons)/(2.58 gallons) * minutes \nx minutes = 103.876 minutes\nx = 103.876 minutes\n

And to find out the number of hours that is, divide by 60 and you get 1.73 hours.

A construction company built bleachers that can hold a 149,227 pounds. How many 169-pound people can the bleachers hold?

Answers

Answer: 883 people

Step-by-step explanation: If the bleachers can hold 149,227 pounds and each person weighs 169 pounds, then you would do 149,227 divided by 169 to get 883.

149,227 ÷ 169 = 883

Answer:

883 people

Step-by-step explanation:

This is a division problem.

(149,227 lb)/(169 lb) = 883

Answer: 883 people.

Todd had 3/4 of an Apple left from breakfast. his sister are 1/8 of what was left. how much of the Apple is left

Answers

0.625 or 5/8 left of the apple

The scale size is 2cm:4m

Answers

I'm not sure which one is the scale size so i'll solve for both...

Ratio is 2cm:4m
0.02m:4m or 2cm:400cm also work as ratios

400cm/2cm=200 (so the scale is 200X smaller than the original)

Option 1::

If the scale of the item is:

l=12cm and w=6cm

then we can solve for the actual size by multiplying the values by 200

l=12cm*200=2400cm or 24m

w=6cm*200=1200cm or 12m

Option 2::

If the original item has a length of 12m and a width of 6m then:

l=12m and w=6m

We can find the scale length by dividing by 200

l=12m/200=.06m or 6cm

w=6m/200=0.03m or 3cm

There are 3000 people at a concert you survey a random sample of 200 people and find that for 35 of them this is their first concert they have ever attended estimate how many total people are attending their first concert that night

Answers

ok so
ratio
35/200=x/3000
7/40=x/3000
multiply both sides by 12000
2100=4x
divide both sides by 4
525=x


aprox 525 people

In 1 hour how many more times does a rabbits heart beat than a dogs rabbits heart beat per 1 minute 212 dogs heart beat per 1 minute

Answers

Answer: In  1 hour, 12720 more times rabbit's heart beat than a dog's rabbits heart beat

Step-by-step explanation:

Since we have given that

Rabbit's heart beat in 1 min 212 times more than dog's heart beat in 1 min.

So, in 1 hour , we get,

1\text{ hour }= 60\text{ minutes}\nso, heartbeat = 212* 60=12720

So, in  1 hour, 12720 more times rabbit's heart beat than a dog's rabbits heart beat .

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