Answer:
120 quarts
Step-by-step explanation:
1 gallon=4 quarts
30x4= 120
Answer:
A. 60 miles per hour
B.120 customers per day
C.2.5 meters per second
D. $1.59 per pound
Step-by-step explanation:
Here we are asked to determine the unit rate for each one of the options given. By unit rate we mean the quantity for per unit quantity . Hence in order to find that we divide the two and quotient is our unit rate. Let us see how:
A. 420 miles in 7 hours
Unit rate = 
Unit rate = 60 miles per hour
B. 360 customers in 30 days
unit rate = 
Unit rate = 120 customers per day
C. 40 meters in 16 seconds
Unit rate = 
Unit rate = 2.5 meters per second
D. $7.96 for 5 pounds
Unit rate = 
Unit rate = $1.59 per pound
To answer the question above, factor each number and determine the biggest common factor.
42 = 6 x 7
63 = 9 x 7
105 = 15 x 7
The common factor for these numbers is 7. Thus, the fabric pieces should be 7 inches long.
Alright so this is what you do.
You need to isolate one variable so that it is y = or x =
Lets go with y = for the first one
-x +3y = -6
x - 3y = 6
Isolate y = by adding x for the first one and then subtracting x from the second one.
3y = -6 + x
-3y = 6 - x
You would then divide the second one by -3 and divide by 3 in the first one.
y = (-6 +x) / 3
y = (6 -x) / -3
Since this is what y = you can put them together.
-6+x) / 3 = 6-x)/-3 (I put one parenthesis for convenience)
This equation is now set and you aren't done yet.
You can take out -1 from each side. This makes it no solution since you must always multiply by -1.
(6+x) / 3 = -1( (6+x) / 3)
Try the second one on your own!
Answer:choices?
Step-by-step explanation:
