2 years ago

What is the answer ?

Mathematics

1 answer:

bonufazy [111]2 years ago

4 0

Answer:

Step-by-step explanation:

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Lily's car used 6 gallons of gas to drive 237 miles. At what rate does her car use gas in miles per gallon? Express your answer

iogann1982 [59]

Answer:

39.5 miles/gallon.

Step-by-step explanation:

6 gallons of gas used to drive 237 miles

The rate of her car uses gas in miles per gallon =

$\frac{237 miles}{6 gallons} = \frac{237}{6} = 39.5 \ miles/gallons$

Which mean the car will consume 1 gallon for each 39.5 miles.

7 0

2 years ago

The speed of boat in still water is 15km/hr if needs 4 more his to travel 63 km against the current of a river than it needs to

hram777 [196]

Answer:

$\frac{63}{15 - c} - \frac{63}{15 + c} = 4$

Step-by-step explanation:

The systems of equations are

Let us assume the rate of the current be c

Now actual speed against the current is (15 - c)

And, the actual speed with the current is (15 + c)

Here we applied the time formula i.e. distance by speed

Also the upstream time - downstream time = 4

Now the equations are

$\frac{63}{15 - c} - \frac{63}{15 + c} = 4$

5 0

2 years ago

The enrollment at a local college increased 2% over last year's enrollment of 3300. Find the current enrollment.

ella [17]

It should be 3366. To find the percent increased, multiply 3300 by .02 and add that to 3300, giving you 3366.

8 0

2 years ago

Admission for children is $7 and $10 for adults the event was attended by 700 people and total amount collected was $6400 there

Veseljchak [2.6K]

There were 500 adults and 200 children.

5 0

2 years ago

Please solve this question the answer is 45 degree

malfutka [58]

Answer:

∠ABC= 45°

Step-by-step explanation:

∠ABC= ∠BCD (alt. ∠s, AB//CD)

(2x +15)°= (3x)°

2x +15= 3x

3x-2x= 15 (-2x on both sides)

x= 15

Substituting the value of x:

∠ABC

= ∠BCD

= [3(15)]°

= 45°

7 0

2 years ago