The equation is
time= distance/rate
and the train is going 300 miles
the car is going 200 miles
the train goes 20 miles faster than the car
fitting the numbers into the equation
200/r=300/(r+20)
cross multiply
200/r = 300/(r+20)
200(r+20) = 300r
distributive property
4000+200r=300r
subtract 200r from both sides to add like terms
4000=100r
divide 100 from each side to get r by itself
40 = rate of car
60 = rate of train
Let
be the length of the square, then the area is
. Hence, the side is the positive root of the area, which is
Answer: Y = -y - 12
Step-by-step explanation:
Ok the question dosent make sence you said hundreds place but it only goes up to tenths so if we were going by tenths place the answer would be 70
i hope i helped
Answer:
3-14x⁴- 2x+20x+ 4x²
3- 14x⁴+ 18x+4x²
= -14x⁴+4x²+18x+3
Step-by-step explanation:
-14x⁴+4x²+18x+3
