D is your answer
Expand and do FOIL method (first outside inside last)
simplify and then choose right answer
A is your answer
Do the same thing
hope this helps
Remaining water in the tank is (19/2-19/3) gallons = 57-38/6=19/6 =3 1/6 gallons
<u>Answer:</u>
A = 70
B = 90
<u>Step-by-step explanation:</u>
We know that Car A travels 20 mph faster than Car B.
Assuming the speed of Car B to be x and the speed of Car A to be x+20, we can write:

Taking the reciprocal of both sides to make x the subject:




---> speed of Car A
Finding the speed of Car B: 
Therefore, the speed of Car A = 70 and the speed of Car B = 90.
Answer: 2 miles
Step-by-step explanation:
Afternoon-x; morning- 1.5x; Evening: 1/2x
Make a equation: 1.5x+x+1/2=6
2.5x+1/2x=6
5/2x+1/2x=6
6x=12
x=2
Step-by-step explanation:
1) -22
2) -172.368
hope it helps