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horsena [70]
3 years ago
14

Where were some of the first tunnels built

Mathematics
1 answer:
QveST [7]3 years ago
6 0
<span>In Babylonia, tunnels were used extensively for irrigation; and a brick-lined pedestrian passage some 3,000 feet (900 meters) long was built about 2180 to 2160 BC under the Euphrates River to connect the royal palace with the temple. Hopefully this answer helps
</span>
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0.25 r – 0.125 + 0.5 r = 0.5 + r . solve for r
Ivahew [28]
First, we need to get all of the r's on the same side.  To do this, we need to subtract "r" from both sides.

0.25r - 0.125 + 0.5r - r = 0.5 + r - r

0.25r - 0.125 +0.5r - r = 0.5

Now, we need to add like terms.

0.25r + 0.5r - r - 0.125 = 0.5

-0.25r - 0.125 = 0.5

Now, we need to get the "r" variable by itself.

-0.25r - 0.125 + 0.125 = 0.5 + 0.125

-0.25r = 0.625

Now, we divide both sides by -0.25

(-0.25r) / (-0.25) = 0.625 / (-0.25)

r = -2.5
6 0
3 years ago
Find the slope:<br><br> a line passes through P (3,-7) and Q (-5,5)
nalin [4]

76 mutiply by each other

7 0
2 years ago
One year,the price of wheat was $8.87 per bushel.The next year,the price was $9.60. Round the price per bushel of wheat for each
stellarik [79]
<span>So the given numbers are:
=> One year, the price of wheat is 8.87 dollars
=> the next year, the price of wheat is 9.60 dollars.
We were asked to round each prices of bushels of wheat to its nearest tenths.
=> 8.87, where 8 before the decimal point is ones, 8 next to decimal point is tenths and 7 is the hundredths.
=>round off to the nearest tenths
=> 8.9
=> next is 9.60, where 9 is the ones value, 6 is the tenths value and 0 is the hundredths.
=> round off to nearest tenths
=> 9.6

</span>



5 0
3 years ago
A sports annoucer can say 70 words in 20 seconds or 1/3 minute what is his rate of speaking in words per minute?
USPshnik [31]

Answer:

It would be 210 words per minute

Step-by-step explanation: since 70 in 20 is 1/3 multiply 70x3 and there´s your answer

4 0
2 years ago
(PLEASE DO NOT ANSWER OR COMMENT UNLESS YOU HAVE THE CORRECT ANSWER.)
Blizzard [7]

Answer:

V=a2h

3=62·4

3=48m³

Answer- 48m

Step-by-step explanation:

Hope this helps! lolz <3

7 0
3 years ago
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