Answer:
3x+4
Step-by-step explanation:
Answer:
72000 miles.
Step-by-step explanation:
Because we know each tire has been on the car for the same number of miles which means 1 tire can travel :4/5*90000 = 72000 miles.
Answer:
3x + 2y = 23
Step-by-step explanation:
mangoe = x
apple = y
6x + 4y = 46
<em>divide </em><em>them </em><em>by </em><em>2</em>
3x + 2y = 23
They had the same quotient because both of those equations are equal
Answer:
Step-by-step explanation:
AB = 8x + 5
BC = 5x² - 16
5x² - 16 = 8x + 5
5x² - 8x - 21 = 0
Quadratic formula
x = [8 ± √(8² – 4·5(-21))] / [2·5]
= [8 ± √484] / 10
= [8 ± 22] /10
= -1.4, 3
-1.4 is an extraneous solution.
x = 3
AB = 8x+5 = 29
AC = 58
