Answer:
66
Step-by-step explanation:
(z-33)/z = 1/2
2z-66=z
z=66
Let’s call the speed of the slower car S, then the speed of the other is S+10mph.
At 5pm they have been travelling for 3 hours. The slower car travels a distance 3S and the faster one 3(S+10).
But the two distances must add up to 240 miles so 3S+3(S+10)=240, 3S+3S+30=240, 6S=210, S=35 mph. The faster car’s speed is 45mph. We can see that 3S is the same distance as 3x, so x=S=35 mph, and the distance the faster car travels is 3×45=135 miles.
40/100=0.4 and 72/0.4=180
so the answer is 180
-6(3x + 1) I’m sure this is it
There are more atoms in a human body because 7.5*10^18 is less than 7*10^27.
