4 years ago

9x1,000 using mental math

Mathematics

2 answers:

Orlov [11]4 years ago

8 0

It is 9,000. You just have to add 3 zeros on the 9. Hope this helps!! :)

Natasha2012 [34]4 years ago

5 0

Hey look
9 times 10 is 90
9 times 100 is 900
9 times 1000 is 9000

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Symify 9 to the 2 power / 9 to the 7 power

fenix001 [56]

9514 1404 393

Answer:

1/9^5

Step-by-step explanation:

$\dfrac{9^2}{9^7}=\dfrac{9\cdot 9}{9\cdot 9\cdot 9\cdot 9\cdot 9\cdot 9\cdot 9}=\dfrac{1}{9\cdot 9\cdot 9\cdot 9\cdot 9}=\boxed{\dfrac{1}{9^5}}$

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At a local preschool there is a ratio of 3 boys to every 4 girls. If there are 245 total preschoolers enrolled then how many are

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Answer:

105 boys

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4 years ago

Suzanne bought 50 apples at the orchard. She bought 4 times as many red apples as green apples. How many more red apples than gr

Kipish [7]

Step-by-step explanation:

Let x be the number of Green apples bought.

Then 4x is the number of Red apples bought.

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Since there are 10 green and 40 red apples, 40 - 10 = 30 more red apples than green apples.

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3 years ago

Which expression is equivalent to 2(m − 5) 6? 2m − 1 2m 22 2m − 4 2m 16

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2(m - 5) + 6 = 2m - 10 + 6 = 2m - 4

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4 years ago

Read 2 more answers

Find three consecutive even integers such that the<br> sum of the smallest and the largest is 36.

erastova [34]

n= smallest integer

n+2= middle integer

n+4= largest integer

n + n + 4 = 36

2n+ 4 = 36

2n=32

n= 16 which means that the smallest integer is 16

then you substitute it into the equation for the largest integer

n+4=20

16, 18, 20 is the answer

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3 years ago