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11111nata11111 [884]
3 years ago
13

Need help really pllzzzz.....

Mathematics
1 answer:
Dominik [7]3 years ago
4 0
G(x)=-2x-4
f(x)=15+0.75x

the common solution Q is their intersection-> calculate x by setting them equal:
-2x-4=15+0.75x
-2x-(3/4)x=19
-(11/4)x=19
x=-4*19/11
x=-76/11

calculate y:
f(-76/11)=15+(3/4)*(-76/11)
=15+(-3*19/11)
=15+(-57/11)
=15+-5-(2/11)
=10-(2/11)
=108/11

so the solution is a) (-76/11, 108/11)
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Answer:  " \frac{1}{4} gal /hr ;  or, write as:  " 0.25 gal/hr. " .

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Step-by-step explanation:

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that is:  we want to solve for a particular quantity per [single] unit.

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→ in this case, per single "hour" ;

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" 2 gal per 8 hours" ; to the correct number of:

 _?_ gal per [single] hr.

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{<u>Note</u>:  "gal" refers to:  "gallon(s)" ;

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→ " \frac{2 gal}{ 8 hr} = [\frac{2}{8}] gal / hr. " ;

_______________

→ " { \frac{2}{8} = [2÷2] / [8÷2] = 1/4 ;

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So, the answer is:  

  → " \frac{1}{4} gal /hr " ;

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 or: write as decimal:

  → " \frac{1}{4} = (1 ÷ 4) = 0.25 " ;

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write the answer as:

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  → " 0.25 gal/hr. "

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Or, when we had:

 → "2/8" gal/hr ;

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 Use calculator:

 → " \frac{2}{8} = "2 ÷ 8" ;

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So:  The correct answer is:

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 " \frac{1}{4} gal /hr ;  or, write as:  " 0.25 gal/hr. " ;

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Hope this is helpful to you!

Best wishes in your academic endeavors—

  and within the "Brainly" community!

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