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padilas [110]
3 years ago
13

A van travels 180 miles on 12 gallons of gas. How many gallons will it need to travel 285 miles?

Mathematics
2 answers:
dsp733 years ago
5 0

Answer:

19 gallons

Step-by-step explanation:

if a van travels 180 miles / 12 gallons, it needs one gallon for every 15 miles.  

285 miles / 15 = 19 gallons

The van will need 19 gallons to travel 285 miles.

Hope this helps!

Crazy boy [7]3 years ago
3 0

if a van travels 180 miles / 12 gallons, it travels 15 miles / gallon (simply divide 180 / 12)

285 miles / 15 = 19 gallons

The van will need 19 gallons to travel 285 miles.

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A football field measures 300 feet in length. It can also be expressed as approximately 5 7x 10miles. If the
kogti [31]

Answer:

The question is incomplete or there are details missing.

Step-by-step explanation:

From similar parameters, if by what they mean is that the football field measures 300feet in length, which is the dimension in length, this can also be in terms of metre.

The conversion factor between ft and metre is 1ft = 0.3048m

As such, we can only have variations or the length of the field measured may have ranges of measurement,  but as it is the length of the field can not be expressed in terms of miles, the most reasonable vale of n we can get will be the least measurement in metres.

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2 years ago
Nora uses 2 ft of ribbon to make a bow she has 8 yards of ribbon . how many bows can she make
7nadin3 [17]
She can make 12 bows because there are 3 feet in one yard so 8*3 is 24. then you divide 24 by 2 and you get 12 
5 0
3 years ago
Read 2 more answers
Find the measurements (the length L and the width W) of an inscribed rectangle under the line with the 1st quadrant of the x &am
Leni [432]

The question is incomplete. Here is the complete question.

Find the measurements (the lenght L and the width W) of an inscribed rectangle under the line y = -\frac{3}{4}x + 3 with the 1st quadrant of the x & y coordinate system such that the area is maximum. Also, find that maximum area. To get full credit, you must draw the picture of the problem and label the length and the width in terms of x and y.

Answer: L = 1; W = 9/4; A = 2.25;

Step-by-step explanation: The rectangle is under a straight line. Area of a rectangle is given by A = L*W. To determine the maximum area:

A = x.y

A = x(-\frac{3}{4}.x + 3)

A = -\frac{3}{4}.x^{2}  + 3x

To maximize, we have to differentiate the equation:

\frac{dA}{dx} = \frac{d}{dx}(-\frac{3}{4}.x^{2}  + 3x)

\frac{dA}{dx} = -3x + 3

The critical point is:

\frac{dA}{dx} = 0

-3x + 3 = 0

x = 1

Substituing:

y = -\frac{3}{4}x + 3

y = -\frac{3}{4}.1 + 3

y = 9/4

So, the measurements are x = L = 1 and y = W = 9/4

The maximum area is:

A = 1 . 9/4

A = 9/4

A = 2.25

6 0
3 years ago
What is 7% tax on a $9.79 purchase
tangare [24]
<span>To find 7% tax on $9.79 multiply by 0.07 getting 0.6853
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4 0
2 years ago
Which table shows a proportional relationship between x and y? please help and answer quick plz
gavmur [86]
The answer is c. 

(a)

x * 2 = y
2 * 2 = 4 
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(b)

unknown formula

(c)

x * 3 = y
4 * 3 = 12 
5 * 3 = 15
6 * 3 = 18

(d)

x * 4
1 * 4 = 4
2 * 4 = 8
3 * 3 = 9 not 15
3 0
3 years ago
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