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Margaret [11]
3 years ago
9

A family has two cars. The first car has a fuel efficiency of 20 miles per gallon of gas and the second has a fuel efficiency of

15 miles per gallon of gas. During
one particular week, the two cars went a combined total of 1325 miles, for a total gas consumption of 75 gallons. How many gallons were consumed by each of
the two cars that week?
Mathematics
1 answer:
kogti [31]3 years ago
6 0

Answer:

40 and 35

Step-by-step explanation:

If we say the first car uses x gallons then the second car must use 75 - x gallons.

The distance travelled is the number of gallons used * the efficiency of the car.

20x + 15(75-x)=1325

20x + 1125 - 15x = 1325

5x = 200

x = 40

This means that the first car uses 40 gallons and the second car uses 75-40= 35 gallons

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Fantom [35]

Answer:

B. $50

C. y=25x+50

D. $550

Step-by-step explanation:

B. (0, 50)     y=50

C. y=mx+b     y=25x+50

D. y=25(20)+50     y=500+50     y=550

5 0
2 years ago
What is the diameter of a circular swimming pool with a radius of 8 feet?
Alenkasestr [34]
We know that,

diameter is twice the radius, I.e d = 2r

Now d = 2(8)ft = 16 feet
5 0
2 years ago
An escalator lifts people to the second floor of a building, 28 ft
Marysya12 [62]

9514 1404 393

Answer:

  56 ft

Step-by-step explanation:

The geometry can be modeled by a right triangle with an unknown hypotenuse, and a side opposite the 30° angle that is 28 ft.

  sin(30°) = (28 ft)/hypotenuse

  hypotenuse = (28 ft)/sin(30°) = 56 ft

The length of the escalator is 56 feet.

4 0
3 years ago
Pepper jackie purchased 3.5 pounds of jelly beans for 1.19 per pund. How much did she spend on jelly beans, to the nearest cent
Pani-rosa [81]

Answer:

416.5 cent Pepper jackie  spend on jelly beans .

Step-by-step explanation:

As given

Pepper jackie purchased 3.5 pounds of jelly beans for $1.19 per pound.

Thus

$1.19 = 1 pound

Cost of 3.5 pounds of jelly beans = 1.19 × 3.5

                                                       = $4.165

Therefore the cost of 3.5 pounds of jelly beans is  $4.165 .

As 1 dollar = 100 cent

 $4.165  = 4.165 × 100

              = 416.5 cent

Therefore 416.5 cent Pepper jackie  spend on jelly beans .



6 0
3 years ago
Mixture Temperature (°C)
Natasha_Volkova [10]

Answer:

c

Step-by-step explanation:

sheeesh 3 easy

4 0
3 years ago
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