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skad [1K]
3 years ago
13

a boat traveled 280 miles downstream and back. the trip downstream took 7 hours. the trip back took 14 hours. find the speed of

the boat in still water and the speed of the current
Mathematics
1 answer:
Harman [31]3 years ago
3 0
40 mph on the way, 20 mph on the way back. 
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What is the cross section of a cylinder that is perpendicular to the base through the center?
Tju [1.3M]

The cross section perpendicular to the base is a rectangle. The cross section parallel to the base is a pentagon similar to the pentagonal base. The solid is a cylinder.

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Liam buys a motorcycle for $2,900. Its value depreciates annually at a rate of 12%. At the end of t years, it has a value of les
KIM [24]

It is given in the problem that

Liam buys a motorcycle for $2,900

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2900(1-0.12)^t

The inequality representing its value less than $2,000 can be written as below

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3 years ago
The perimeter of a square garage door is 16 yards. How long is each side of the garage door?
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Answer:

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3 years ago
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Two intelligent, honest students are sitting together at lunch one day when their math teacher hands them each a card. “your car
Lady bird [3.3K]
Answer: The loser's card shows 6.

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1     12
1     15
1     18
2     6
2     9
3     4
3     5
3     6
4     3
5     3
6     2
6     3
9     2
12  1
15  1
18  1

Now, the information says that A doesn't know what B has, so we can immediately cross off all of the combinations that have the integer appearing once and once ONLY off, because if it happened once only, A would know of it straight away. Now, our sample space becomes much smaller.

1     12
1     15
1     18
2     6
2     9
3     4
3     5
3     6
6     2
6     3

Using this same logic, we know that we can cross off all of the digits that occur only once in B's column.

2     6
3     6

Now, A definitely knows what number B has because there is only one number left in B. Hence, we can conclude that the loser, B, has the integer 6.
4 0
3 years ago
Jina used a tots of 2 1/6 gallons of gas while driving her car. Each hour she was driving, she used 7/8 gallons of gas. What was
marysya [2.9K]
2 1/6 ÷ 7/8= 2 10/21 h
hope this helps!
8 0
3 years ago
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