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3 years ago

1 2/7 minus what equals 6/7

1 answer:

5 0

Change all mixed fractions to improper fractions.

1 2/7 = 7/7 + 2/7 = 9/7.

Subtract

9/7 - 6/7 = 3/7

3/7 is your answer

Hope this helps

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A speed walker covered 4 1/2 mi in 3/4 hour. How far will he walk in 3/4 hour if he walks

Pavel [41]

Answer:

A=27/4 B=2.25

Step-by-step explanation:

4 and 1/2 also equals 18/4.

18/4+1/2(18/4)=18/4+9/4

18+9=27

Answer is 27/4

B)=4.5/2=2.25

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3 years ago

What is the solution to the inequality 3a/2 < 24

rusak2 [61]

Answer:

a < 16

Step-by-step explanation:

We must get a alone to solve this. So first multiply by 2

3a/2 < 24

3a < 48

Divide by 3

a < 16

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1 year ago

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2 years ago

Sound travels through sea

azamat

For this you need to multiply 1,500 by 60 (because there are 60 seconds in a minute) and then multiply that by 2 (because there are 2 minutes), wich makes the answer 180,000 meters.
Does this help?

5 0

2 years ago

Amar keeps picking playing cards out of a standard deck of 52 cards in the hopes that he will

lapo4ka [179]

Answer:

The required probability is, 0.78

Step-by-step explanation:

There are, (52 - 13) = 39 cards which are not spade

5 cards can be chosen from the deck of 52 cards in

$^{52}{C}_{5}$ ways

and out of these 5 choices, none of them will be spade in,

$^{39}{C}_{5}$ ways

So,

P(None of the chosen cards is spade)

= $\frac {^{39}{C}_{5}}{^{52}{C}_{5}}$

$\simeq 0.22$

Hence,

P(out of these 5 choices, at least one card is spade)

$\simeq (1 - 0.22)$

= 0.78

4 0

3 years ago