Answer:
15/8 hours .................
Step-by-step explanation:
Let L be Laura, and B be Ben. Then:
3L=1
5B=1
Next:
15L=5
15B=3
15(L+B)=5+3=8
15/8 (L+B)=1
Answer:
280 miles
Step-by-step explanation:
Divide 420 by 12 to find the unit rate of miles per gallon.
You get 35 miles per gallon
To find how many miles he can travel for 8 gallons, multiply 35 by 8.
You get 280 miles.
Answer:
The inequality that describes the situation is:

Step-by-step explanation:
The minimum hourly pay for working in Maryland is $8.75.
This means that the hourly pay for working, which is represented by variable x, has to be equal or greater than 8.75. So the inequality that describes the situation is:

The answer is 17 and 9
Because 13-4=9 13+4=17
If you substitute a variable for each blank, for example x*2+x*3 you get 5x=12, which can then be solved to get that x=12/5, so 12/5 is the answer.