Answer:
mZB= 74
Step-by-step explanation:
ZB+ZA=180
3X-23+2X-12=180
5X-35=180
5X=180+35
5X=215 (then divide both sides by 5 to x be left alone.)
X=43....so ZB=2(43)-12
=86-12=74
It would be:
5n - 2
Hope that helps :D
Answer:
Step-by-step explanation:
let the speed of one plane=x mph
speed of other plane=x+120 mph
x×1.5+(x+120)×1.5=1620
(x+x+120)×1.5=1620
(2x+120)×1.5=1620
3x+180=1620
3x=1620-180
3x=1440
x=480
speed of one plane=480 mph
speed of second plane=480+120=600 mph
152700 is answer. Try to do these problems on paper then you can see where you went wrong . also try to do the actual question
Answer:
349.21875 %
Step-by-step explanation:
if 100 percent of a number is that number than 349.21875 percents of a number is 3 times that number with additional add ons
