3 years ago

What can you conclude from the following true statements?

Mathematics

1 answer:

lys-0071 [83]3 years ago

3 0

There is snow on the ground outside.

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A lake is 200 feet wide. Two boats start to move towards one another from opposite shores. In one minute, the first boat goes 40

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Answer:

I use faction

Step-by-step explanation:

The first boat.

$\frac{40 feet}{60 seconds}$ ÷ 10 = $\frac{4 feet}{6 seconds}$

$\frac{4 feet}{6 seconds}$ ÷ 2 = $\frac{2 feet}{3 seconds}$

The first boat move $\frac{2 feet}{3 seconds}$

The second one do the same

$\frac{30 feet}{60 seconds}$ ÷ 10 = $\frac{3 feet}{6 seconds}$

$\frac{3 feet}{6 seconds}$ ÷ 2 = $\frac{1.5 feet}{3 seconds}$

That is the speed of each boat.

The first boat need 50 minutes to get to the other side

2000 ÷ 2 =1000

1000 x 3 = 3000

3000 ÷ 60 = 50

The second boat need 66.6666666667 minutes to get to the other side

200 ÷1.5 = 1333.33333333

1333.33333333 x 3 = 4000

4000 ÷ 60 = 66.6666666667

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Estimate the following difference using front-end estimation. 788.44 - 225.6

Liula [17]

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Step-by-step explanation:

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4 years ago

Tom and Sam can finish a plowing job in two hours if they work toghether. Tom working alone can do the job in 7 hours. How long

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Answer:

Step-by-step explanation:

If he takes 7 hours, she would take 7 hours doing it at the same pace

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What is 2 2/5×2 7/9 in simplest mixed number form?

Scorpion4ik [409]

Answer:

6 2/3

Step-by-step explanation:

2 2/5 * 2 7/9

Change each number to an improper fraction

2 2/5 = (5*2+2)/5 = 12/5

2 7/9 = (9*2+7) = 25/9

12/5 * 25/9

Rewriting

25/5 * 12/9

5/1 * 4/3

20/3

Now changing to a mixed number

3 goes into 20 6 times with 2 left over

6 2/3

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4 years ago