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4 years ago

Select all the equations where x=3 equals, 3 is a solution.

Mathematics

1 answer:

topjm [15]4 years ago

4 0

Answer:

Step-by-step explanation:

all the equations where x=3 when 3 is a solution : a(x-3)=0 ... a≠ 0

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Which pair of angles must be supplementary?

Alex_Xolod [135]

∠3 and ∠4 are angles that must be supplementary.

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4 years ago

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Help me please ): I'm stuck here I don't remember how to do this .----.

inessss [21]

The last number would be 86 , TRUST ME I know these stuff!!

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3 years ago

The distance traveled by a certain vehicle varies directly to the amount of fuel the vehicle consumes. The vehicle traveled 90 m

olga_2 [115]

Answer:

The vehicle covers 126 miles on 7 gallons of fuel.

Step-by-step explanation:

Given:

The distance traveled is directly proportional to the amount of fuel.

For $F$ gallons of fuel distance traveled $D$ miles can be given as:

$D$ ∝ $F$

$D=kF$

where $k$ is constant of proportionality.

The vehicle covers $D=90$ miles on $F=5$ gallons.

$90=k(5)$

Dividing both sides by 5.

$\frac{90}{5}=\frac{k(5)}{5}$

$18=k$

∴ $k=18$

When $F=7$ gallons

$D=(18)(7)$

$D=126$ miles

∴ The vehicle covers 126 miles on 7 gallons of fuel.

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3 years ago

X/6 = 10/9<br> improper fraction in its simplified form

FinnZ [79.3K]

Answer:

$\frac{x}{6} = \frac{10}{9} \\ \therefore \: 9 \times x = 6 \times 10 \\ \therefore \:9x = 60 \\ \therefore \:x = \frac{60}{9} \\ \therefore \:x = \frac{20}{3} \\ \: \: \: \: \: \: \huge \red{ \boxed{\therefore \:x = 6\frac{2}{3} }}$

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3 years ago

First correct answer will get Brainliest, 30 mins to answer! 25 points

MariettaO [177]

Answer:

I'm assuming it would be 3 hours

Step-by-step explanation:

It would be 3 hours because after three hours, the candle that can only burn for 3 hours will have burned out. This leaves the candles that can burn for 4 and 5 hours. I guess if you want to get really specific you could say 3 hours and 59 minutes but I'm not totally sure how your teacher wants the answer

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3 years ago

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