If you distribute -5 to the things in the parenthesis you would get 10k-20 which is the same as -5(-2k+4)
<u>Answer</u>:
x-intercept = 4
<u>Explanation</u>:
when x-intercept, y shall be 0; when y-intercept, x shall be 0
5x + 2y = 20
[ consider y as 0 ]
5x + 2(0) = 20
[ simplify ]
5x = 20
[ divide both sides by 5 ]
x = 4
coordinate of x-intercept at (4,0)
Lauren runs 14 laps. 2(5) + 4 = 14. Kristi runs 5. 5 x 2 = 10 , 10 + 4 = 14.
Answer:
mix half of the water without salt and 5% of the solution
