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2 years ago

A chain weighs 10 pounds per foot. How many ounces will 4 inches weigh?

1 answer:

4 0

A foot is twelve inches. four inches is a third foot (.333333333....) 16 ounces in a pound, 160 ounces per foot, therefore multiply 160 by a third to find your answer

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To increase an amount bu 17.5%what single multiplier would i use ?

-Dominant- [34]

That would be 1.175 Answer

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2 years ago

Polygon Y is a scaled copy of Polygon X using a scale factor of 1/3. Polygon Y’s area isn’t what fraction of Polygon X’s area?

loris [4]

Answer:

1/9th.

Step-by-step explanation:

Because the area is measured in units squared, then you have to square 1/3 which is 19th.

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2 years ago

Which expression is equivalent to 21 × 7?

belka [17]

I wanna say the answer is A

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2 years ago

Help asap for brainlist help asap

Mariana [72]

Answer:

2x^3+11x^2-43x-24

Step-by-step explanation:

desmos graphing calculator- both factors matched

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1 year ago

Carl and Bob can demolish a building in 6 days, Anne and Bob can do it in 3, Anne and Carl in 5. How many days does it take all

nata0808 [166]

Answer:

59/20 days or 2.95 days

Step-by-step explanation:

Let Carl do the job in c days, Anne- in a, and Bob in b days

Then the portion of job they can do is 1/c, 1/a and 1/b

As per given we have below equations:

1/c + 1/b= 1/6
1/a + 1/b = 1/3
1/a + 1/c = 1/5

Sum of all 3 equations gives us:

2(1/a + 1/b + 1/c) = 1/6 + 1/3 + 1/5
2(1/a + 1/b + 1/c) = 5/30 + 10/30 + 6/30
2(1/a + 1/b + 1/c) = 21/30
2(1/a + 1/b + 1/c) = 7/10
1/a + 1/b + 1/c = 7/20

It means all three together can complete 7/20 of the job in one day

The rest of the job is done by Anne and Bob:

1 - 7/20 = 13/20

As Anne and Bob can do 1/3 of the job in one day, they need time to complete the rest:

13/20:1/3 = 39/20

Add 1 day to this to find overall time:

1 + 39 /20 = 59/20 days or 2.95 days

4 0

2 years ago