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AnnyKZ [126]
2 years ago
8

There are 300 runners at the meet, some boys and some girls

Mathematics
1 answer:
Ira Lisetskai [31]2 years ago
6 0

Answer:

you need to tell me the question first!

Step-by-step explanation:

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Dainel paid $22 for a water bottle. This amount includes 5% tax. What was the cost of the item befor tax?
Oksana_A [137]
20.90 would be the item before tax. To get the amount of tax, I multiplied 20 by 0.05 and subtracted that amount from 22
3 0
3 years ago
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when you are dividing two decimals how can you check whether you have divided the decimals correctly?
Mice21 [21]

Dividing two decimals means that we need to make the following math operation:

\frac{p}{q} \\ \\ where \ p \ and \ q \ are \ two \ decimals

According to the following definition:

If \ p \ and \ d \ are \ two \ real \ numbers \ (two \ decimals) \ it \ is \ true \ that:\\ \\  p=d\times q+r \\ \\ where:\\ \\ p:Dividend \\ d:Divisor \\q:Quotient \\ r:Reminder


We can prove that our result is correct by multiplying the divisor by the quotient plus the reminder and verifying that this result matches the dividend. Also, we can use a calculator to prove that.

5 0
2 years ago
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Select the correct answer.
lidiya [134]

Answer: y=2x+7

(this is a rearranged version of y-2x=7 from question)

Step-by-step explanation:

4x=5-2y

y-2x=7

i would rearrange the 2nd value into y intercept form y=mx+b

so move the -2x to the other side of the = sign by doing the opposite, +2x on both sides to isolate the y

y=2x+7

you didn't give any options for "correct answer" so i can't give

you A B C or D answers

8 0
1 year ago
28/z- z/4+1 1/8 when z =4
Paha777 [63]

Answer:

7 1/8 or 7.125

Step-by-step explanation:

first subsitute z for 4

28/4 - 4/4 + 1 1/8

then do 28/4 - 4/4 which is 6,

add that to 1 1/8

and get 7 1/8

5 0
2 years ago
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Express .0000257 in scientific notation
sukhopar [10]

Answer:

2.57 x 10^(-5)

Step-by-step explanation:

you have to move the comma sign in front of the first number considering 0 as a non-number.

6 0
3 years ago
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