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Alex777 [14]
3 years ago
15

Carmel can drive 320 miles on tank of gas and one tankful costs $39. How many tanks of gas will she need to drive 2,240 miles an

d how much will it cost
Mathematics
2 answers:
Umnica [9.8K]3 years ago
4 0
Carmel would need 7 gas tanks. (2,240 ÷ 320 = 7)
Carmel would need $273 because since she needs $39 dollars for one gas tank, you would have to multiply that by 7. (39 x 7 = $273)
RideAnS [48]3 years ago
4 0

Answer:

To drive 2,240 miles, Carmel will need 7 tanks of gas. As each tankful costs $39, 7 tanks of gas will cost $273

Step-by-step explanation:

Carmel can drive 320 miles on tank of gas, and one tankful costs $39. In order to know how many tanks of gas will she need to drive 2,240 miles and how much will it cost, we have to do the following calculation:

2240 (total miles) / 320 (miles on tank of gas) = X (how many tanks of gas will she need)

2,240 / 320 = X = 7

To drive 2,240 miles, Carmel will need 7 tanks of gas. As each tankful costs $39, 7 tanks of gas will cost $273 (as 39 x 7 = 273).

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I need help on #9. The help would be grateful appreciated.
ELEN [110]
Original Figure:
Length = 15
Width = 5
Height = 10
Volume = Length*Width*Height
Volume = 15*5*10
Volume = 750

New Figure
Length = 3
Width = 1
Height = 2
Each dimension has been divided by 5 (eg: 15/5 = 3)
Volume = Length*Width*Height
Volume = 3*1*2
Volume = 6

The old volume was 750 and it changes to 6
Notice how 750/6 = 125
Which can be rearranged to 750/125 = 6

Answer: if you divide the old volume by 125, then you get the new volume

Note: the new volume is 125 times smaller than the old volume
Put another way, the old volume is 125 times larger compared to the new volume

The fact that 125 = 5^3 is not a coincidence. If you divide each dimension by some number k, then you divide the volume by k^3

8 0
3 years ago
Find the length of line segmentAB which joins the following points.A(10, 14) and B(2,6)​
Helen [10]

Answer:

The equation of the line AB is  y - x -4 = 0

Step-by-step explanation:

The points are A (10,14) and B(2,6)

Now, slope of the line AB :  m = \frac{y_2 - y_1}{x_2 - x_1}

or, m = \frac{14 -6 }{10 - 2} = \frac{8}{8}  = 1

So, slope of the equation AB = 1

Now, by SLOPE INTERCEPT FORM:

The equation of line is given as :    y - y0 = m (x-x0)

So,the equation of line AB is  y - 6 = 1(x-2)

or, y - 6 -x + 2 = 0

or, y - x -4 = 0

Hence, the equation of the line AB is  y - x -4 = 0

5 0
3 years ago
How do you simplify 30 1/4?
Ira Lisetskai [31]
You can't. That's as simplified as it gets :)
7 0
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Natasha2012 [34]

Answer and explanation:

The expression P-2P+3P-4P cannot have the same values for different values of P. Let us illustrate this by substituting different values of P in the expression:

If P= 2

Substitute P=2 in the expression

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=2-4+6-8

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If P= 3

Substitute P=3 in the expression

3-2×3+3×3-4×3

=3-6+9-12

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If P = 1

Substitute P=1 in the expression

1-2×1+3×1-4×1

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If P = -2

Substitute P=1 in the expression

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8 0
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VikaD [51]

Answer:4.28699507397

Step-by-step explanation:

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