Answer:
We put the value of "y" into the second equation:
x * 5 = -15
x = -15 / 5
x = -3
Step-by-step explanation:
Step-by-step explanation:
Maybe it should be written as 4 9/10
In a mixed number
Step-by-step explanation:
Old Railroad Car:
- 1 day of coal in 15 hours
- 1/15 days of coal in 1 hour
New Railroad Car:
- 1 day of coal in 10 hours
- 1/10 days of coal in 1 hour
Total number of days of coal in 1 hour
= 1/15 + 1/10 = 1/6.
Since there is 1/6 days of coal in 1 hour,
there will be 1 day of coal in 6 hours.
It will take them 6 hours to transport the supply.
Answer:
3/5
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
5 months
Step-by-step explanation:
y=mx+b
162.50=27.50x+25
162.50-25=27.50x+25-25
137.50=27.50x
137.50/27.50=x
5=x
hope this helps :)