They are running 13.1 miles per hour since half of 26.2 is 13.1
4.6x^2+3.2-4x+2.7x^2-x=4.6x^2+3.2x+-4x+2.7x^2+-xCombine like terms:4.6x^2+3.2x+-4x+2.7x^2+-x=(4.6x^2+2.7x^2)+(3.2x+-4x+-x)=7.3x^2+-1.8xAnswer:7.3x^2-1.8x
Answer:
b = -18
Step-by-step explanation:
-1/6b=3
Multiply each side by -6
-6*-1/6b=3(-6)
b = -18
It would be:1/x = 1/40+1/52 = 13+10/520 = 23/520
x = 520/23 = 22.60 minutes