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agasfer [191]
3 years ago
6

Rewrite the word sentence, 27 is 3 times a number y, as an equation

Mathematics
1 answer:
Daniel [21]3 years ago
6 0
27= 3n? Im confused because normally I would say ''3n'' but the 'y' is included. Look back at the notes?
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4 years ago
8 x 10^-3 is how many times as great as 4 x 10^-6
mamaluj [8]

For this case we can rewrite the expressions as:

3 * 10 ^ {- 3} = 0.003

That is, we run the decimal three times to the left.

4 * 10 ^ {- 6} = 0.000004

That is, we run the decimal six times to the left.

So:

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Answer:

3 * 10 ^ {- 3}is 0.002996 times bigger than 4 * 10 ^ {- 6}

7 0
3 years ago
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Use compatible numbers to estimate the quotient 358/3
sweet-ann [11.9K]

Compatible numbers are known as numbers that are the closest value to the actual numbers- this makes mental arithmetic to be performed better. The quotient of 358/3 is equal to 119.333 therefore the compatible number of the quotient of 358/3 is 119.

6 0
3 years ago
×
german

Let

x------> hours worked by Sara last week

y------> hours worked by Joan last week

z------> hours worked by Erin last week

we know that

x=28 hours ------> equation 1

y=x-6-----> equation 2

substitute the value of x in equation 2

y=28-6=22 hours

z=y/2------> equation 3

substitute the value of y in the equation 3

z=22/2=11 hours

<u>the answer is</u>

Sara worked 28 hours last week

Joan worked 22 hours last week

Erin worked 11 hours last week

4 0
3 years ago
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STatiana [176]
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if i am wrong please let me know.
4 0
3 years ago
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