Answer:
100000km
Step-by-step explanation:
first what js does menabsif tryskok
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
Answer:
2x^3+3x^2-50x-75
Step-by-step explanation:
(x+5)(x-5)=x^2-25
(x^2-25)(2x+3)=2x^3+3x^2-50x-75
Can I have brainliest!
Answer:
x=9 y=0 (9,0)
Step-by-step explanation:
Answer:
It will be $7602.3
Step-by-step explanation:
The equation
gives the purchasing power of $10000 after x years.
Therefore, the sum of money $10000 will value
after x number of years.
Now, after 9 years i.e. x = 9 years, the sum value of $10000 will become
dollars. ( Answer )