Answer:
The speed and time are directly proportional in that the higher the speed the lesser the time and vice versa.
The constant is the total distance which is 180 km
Step-by-step explanation:
Step one:
given data
The distance between the two cities is 180km
1.The distance was covered by a car at the rate of 50km/h
The time taken will be
velocity= distance/time
time= distance/velocity
time= 180/50
time= 3.6 hours
2.The distance was covered by a bus 45km/h
The time taken will be
velocity= distance/time
time= distance/velocity
time= 180/45
time= 4 hours
3.The distance was covered by a bicycle at 25km/h
The time taken will be
velocity= distance/time
time= distance/velocity
time= 180/25
time= 7.2 hours
Answer: 6x + 3.5y > 60
<u>Step-by-step explanation:</u>
Popcorn: cost is $6.00, variable is x
Soda: cost is $3.50, variable is y
Total: GREATER than $60
Popcorn + Soda > Total
6x + 3.5y > 60
Answer:
Ratios are proportional when the numbers in the ratio are multiply or divide by the same number. Ex. 3:5 = 6:10 = 12:20 = 9:15 (cross multiply the fractions and the results are the same 3/5 = 6/10)
Step-by-step explanation:
we are given
Since, we have to solve for b
so, we will isolate b ony one side
so, we will add 60 on both sides
so,
Answer:
Maureen should have added 60 to both sides.
