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ivanzaharov [21]
3 years ago
8

What is the sum of -3^2-7x+9and -5^2+6x-4

Mathematics
1 answer:
victus00 [196]3 years ago
6 0

Answer:

9-7x+9+25+6x-4=47-x

Step-by-step explanation:

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(10x – 2) - (2x - 7)<br> O 8x + 5<br> O 12.2 + 5<br> o 12c - 9<br> O 83 -9
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8x+5

Step-by-step explanation:

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8 0
3 years ago
A hose fills a hot tub at a rate of 2.65 gallons per minute. How many hours will it take to fill a 283 ​-gallon hot​ tub?
dsp73

Answer:

you need to substitute values on the next form of resolving this problem as  follows...

A hose fills up a hot tub at a rate of 3.2 gallons per minute. How many hours will it take to fill a 300 gallon hot tub?

please explain the method of unit conversions as thoroughly as possible.

 

Solution:

 

The rate of fill up is, Rate = 3.2 Gallons / minute = 3.2 g/min

The hut tub volume is 300 Gallons

 

You can set up this problem as follows:

 

Every 3.2 gallons require 1 minute, How many minutes 300 gallons require?

 

3.2  g    1min

300 g     ? min    = (300 gallons x 1min/ 3.2 gallons)=(300/32)min

 

= 93.75 min

 

or simply the number minutes is the time required (T) the rate is (R) and the volume is (V)

such that T=V/R= (300g/3.2 g/min)= 93.75 min

7 0
3 years ago
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