Afamily has two cars. the first car has a fuel efficiency of 40 miles per gallon of gas and the second has a fuel efficiency of 30 miles per gallon of gas. during one particular week, the two cars went a combined total of 1900 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?
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The first car consumed 25 gallons of fuel and the second car consumed 30 gallons of fuel.

Step-by-step explanation:

Let us assume that the first car consumed x gallons and the second car consumed y gallons that week.

So, x + y = 55 (1)

⇒ 30x + 30y = 1650 (2)

Now, the second car has a fuel efficiency of 30 miles per gallons and the first car has it of 40 miles per gallons.

So, if the two car combined went for 1900 miles then we can write

40x + 30y = 1900 (3)

Now, solving equations (2) and (3) we get,

40x - 30x = 1900 - 1650

⇒ 10x = 250

⇒ x = 25 gallons.

And from equation (1) we get,

y = 55 - x = 55 - 25 = 30 gallons.

Therefore, the first car consumed 25 gallons of fuel and the second car consumed 30 gallons of fuel. (Answer)

the correct answer would be:

220 centimeters

to get this you can use the pythagorean theorem

hope this

step-by-step explanation:

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.