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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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Which point does not lie on the circle centered at (3, 2) with radius 5? A) (0, 6) B) (3, -3) C) (-2, 2) D) (3, 0)
vladimir1956 [14]

Answer:

D

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (3, 2) and r = 5, hence

(x - 3)² + (y - 2)² = 25 ← equation of circle

If an ordered pair lies on the circle then it satisfies the equation, if not then it does not lie on the circle.

Substitute the coordinates of the points into the left side of the equation of the circle and check validity.

A

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B

(3, - 3) : (3 - 3)² + (- 3 - 2)² = 0 + 25 = 25 ← lies on circle

C

(- 2, 2) : (- 2 - 3)² + (2 - 2)² = 25 + 0 = 25 ← lies on circle

D

(3, 0) : (3 - 3)² + (0 - 2)² = 0 + 4 = 4 ≠ 25 ← not on circle

7 0
3 years ago
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