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3 years ago

1/2 divided by 2 1/2

Mathematics

2 answers:

nirvana33 [79]3 years ago

3 0

Answer:

1/5

Step-by-step explanation:

slava [35]3 years ago

3 0

Answer:

The answer is 0.2

Hope this helps!

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The square of a positve number id 24 more than 5 times the number. what is the value of the number?

Arte-miy333 [17]

Answer:

The number is 8.

Step-by-step explanation:

If the positive number is x then:

x^2 = 5x + 24

x^2 - 5x - 24 = 0

(x - 8)(x + 3) = 0

x =8, -3 .

x is positive so the answer is 8.

4 0

3 years ago

Solve - 3 [ ( x + 2 ) ( x - 1 ) - x ^ { 2 } + 1 ] + 3 ( x - 1 ) (and could you please explain it to me?? I really don't get it.

Mazyrski [523]

Answer:

Step-by-step explanation:

$(x+2)(x-1)= x^2+2x-x-2= x^2 +x -2\\\\( x + 2 ) ( x - 1 ) - x ^ { 2 } + 1 =x^2+x-2-x^2+1=x-1\\\\- 3 [ ( x + 2 ) ( x - 1 ) - x ^ { 2 } + 1 ] =-3(x-1)=-3x+3\\\\- 3 [ ( x + 2 ) ( x - 1 ) - x ^ { 2 } + 1 ] + 3 ( x - 1 ) =-3x+3+3x-3=6x\\$

5 0

3 years ago

Harper knows he is 50 yards from his school. The map on his phone shows that the school is 3/4 inch from his current location. H

marshall27 [118]

Answer:200

Step-by-step explanation:

3÷3/4=4

4x50=200

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3 years ago

Read 2 more answers

Using Unit Rates to convert

miss Akunina [59]

Answer:

5 minutes

Step-by-step explanation:

To find the number of minutes it takes Jason to run a mile, we have to first find the rate at which he runs.

This is called Jason's speed. It is given as

$Speed = \frac{distance}{time}$

$Speed = \frac{440}{75}\\ \\\\Speed = 5.86 yards/second$

From the formula of speed, time is given as:

$time = \frac{distance}{speed}$

Time taken for Jason to run 1 mile (1760 yards) will therefore be:

$time = \frac{1760}{5.86} \\\\\\time = 300.34 secs$

Converting this time to minutes yields:

60 seconds = 1 minute

300.34 equals:

$\frac{300.34}{60} = 5.0 minutes$

It takes Jason 5 minutes to run 1 mile.

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4 years ago

A deck of cards is shuffled. what is the chance that the top card is the king of spades and the bottom card

Elanso [62]

<span>After shuffling a deck of cards in order to know the probability of the king of spades being the top card, you have to first know how many cards are in the deck. If the card is a full deck with no jokers, then the probability is 1/52. This is also the probability that the bottom card is the King of spades.</span>

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4 years ago