What is the slope of the line that passes through the pair of points? (1, 7) (10

Question

What is the slope of the line that passes through the pair of points? (1, 7) (10, 1) A. -2/3 B. 3/2 C. 2/3 D. -3/2 The local zoo has two water tanks for the elephant exhibit that are leaking. One water tank contains 12 gal of water and is leaking at a constant rate of 3 gal/h. The second water tank contains 8 gal of water and is leaking at a constant rate of 5 gal/h. When will the two tanks have the same amount of water? Explain Let x = the number of hours the tanks are filling and let y = the number of gallons in the tank. A. They will never have the same amount of water because the solution to the system is (-2, 18). It is not possible to have -2 gallons m the tanks. B. They will never have the same amount of water because the solution to the system is (-2, 18). It is not possible to have time be -2 hours. C. In 2 hours, because the solution to the system is (2, 18). D. In -2 hours, because the solution to the system is (-2, 18). The school cafeteria sells two kinds of wraps: vegetarian and chicken. The vegetarian wrap costs $1.00 and the chicken wrap costs $1.80. Today they made $98.80 from the 70 wraps sold. How many of the wraps sold were vegetarian? A. 36 wraps

Explanation / Answer

1) slope is correct = -2/3

2) In tank 1: y = 12 +3x

tank 2 : y = 8 +5x

when will they have equal water : 12+3x = 8 +5x

4 = 2x ; x= 2

y = 12 +3x = 12+3*2 = 18

Solution (2, 18)

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