Answer:
D
Step-by-step explanation:
Answer:
running 1.5 hours
Walking 4.5 hours
Step-by-step explanation:
Let the amount of time she spends on walking be x
d/3 + d/9 = 6 Multiply by 9
3d + d = 6*9
4d = 54 Divide by 4
4d/4 = 54/4
d = 13 2/4 = 13 1/2 = 13.5 miles
d/3 = 13.5/3 = 4.5 hours
d/9 = 13.5/<u>9 = 1.5 hours</u>
Total 6 hours
I hope this is the right interpretation.
Answer:
210 ways
Step-by-step explanation:
given that the University of Montana ski team has seven entrants in a men's downhill ski event.
The coach would like the first, second, and third places to go to the team members.
Since one member can get only one place and order counts here we use permutation
No of ways the seven team entrants achieve first, second, and third places
= 7P3
= 
Answer:
Perpendicular lines have slope that are negative reciprocals.
The slope of the perpendicular line is M = -1/3.
Step-by-step explanation:
(4,-1) --> X = 4, Y = -1, M = -1/3
y = Mx + b
-1 = (-1/3)*4 + b
-1 = (-4/3) + b
-3/3 = (-4/3) + b
-3 = -4 + 3b
1 = 3b
b = 1/3
y = (-1/3)X + 1/3
The equations intersect at an infinite number of points. Infinite number of solutions.
<h3>What is elimination method?</h3>
According to the description of the elimination approach, it involves removing a phrase that contains any of the variables from the equation in order to simplify the calculations. To achieve this, multiply or divide a number by the equation(s) until all the variable terms' coefficients are the same.
The term is then eliminated or removed from the result by adding or subtracting from both equations. Because of this, the addition method is another name for the elimination approach.
Therefore,
Multiply each equation by the value that makes the coefficients of y opposite.
(6x - 4y = 4) - [2 × (3x - 2y = 1)]
= [(6x - 4y = 4) - (6x - 4y = 2)]
= 0 = 2
Hence, the equations intersect at an infinite number of points. Infinite number of solutions.
To learn more about elimination method, refer to
brainly.com/question/28405823
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