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Amiraneli [1.4K]
3 years ago
7

giving brainliest!!!!!!!

Mathematics
2 answers:
Shalnov [3]3 years ago
8 0

Answer:

HI

Step-by-step explanation:

Zigmanuir [339]3 years ago
7 0

Answer:

Step-by-step explanation:

Im not sure at all, but my best guess would be B. So sorry if this dosent help!

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(1 point)
san4es73 [151]

Answer:

Step-by-step explanation:

2x - 9y = 23

5x - 3y = -12x - 9y = 23

5x - 3y = -1

7 0
3 years ago
James has an ice cube tray that makes ice in the shape of spheres rather than cubes. Each sphere of ice has a radius of 2cm, one
DedPeter [7]
<span>Each sphere of ice has a radius of 2cm
</span>one tray makes 6 spheres
<span>What is the total volume of ice the tray can make at one time?

Total volume of each sphere is </span><span>33.51 cm^3
The tray can hold 6 of these at a time
33.5 * 6
201 cm^3 total volume of ice that the tray can make at one time
Written in pi 
64 \pi cm^3

Hope this helps :)</span>
6 0
3 years ago
Lester’s car can go 15.4 miles on 1 gallon of gas. How far can he go on 0.7 gallon?
MAVERICK [17]

Answer:

He can go 10.78 miles

Step-by-step explanation:

This problem can be solve by creating a proportion, knowing that 15.4 miles is to one gallon the same as "x" miles (our unknown) is to 0.7 gallons. This can be set in math terms as the equation that relates these two ratios of miles per gallon:

\frac{15.4\,miles}{1\,gallon} =\frac{x }{0.7\,gallon}

and to solve for the unknown number of mile, we multiply both sides of the equation by "0.7 gallon" in order to isolate our unknown:

\frac{15.4\,miles}{1\,gallon} =\frac{x}{0.7\,gallon}\\\frac{15.4\,miles\,*\,0.7\,gallon}{1\,gallon} =x \\x=10.78\,miles

7 0
3 years ago
What is 17- 6 11/12<br> Can someone please solve in steps?
Airida [17]

17- 6 11/12

borrow from the 17 and use a common denominator

16 12/12 - 6 11/12

10 1/12

6 0
3 years ago
A boat in still water is 32 mph. If the boat travels 72 miles upstream in the same time that it takes to travel 120 miles downst
dalvyx [7]
Dup= 72 miles 
<span>ddown= 120 miles </span>
<span>v= riverspeed </span>
<span>rup= 32mph - v </span>
<span>rdown= 32mph + v </span>
<span>t both ways= t </span>

<span>d=r*t </span>
<span>d/r=t </span>

<span>t=ddown/rdown </span>
<span>t=dup/rup </span>

<span>dup/rup = ddown/rdown </span>

<span>(72)/(32-v)=(120)/(32+v) </span>
<span>3840-120v=2304+72v </span>
<span>1536=192v </span>
<span>v=8</span>
8 0
3 years ago
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