I hope this helps you
Algebra 1 solve by elimination 6x-3y=30 6x+y=18
2 answers:
First, we need the coefficient of one of our variables to be the same.
In this case, it's already done for us. We have 6x in both equations.
Now, we just subtract the equations.
Note that the subtraction distributes to each term of that equation.
(you can also do something similar by adding equations--as long as you get rid of of that variable...and if your coefficients aren't the same to begin with, just multiply both sides of one of those equations to get them equal.)
Now, we just use that y = -3 to find x.
In this case, it's already done for us. We have 6x in both equations.
Now, we just subtract the equations.
Note that the subtraction distributes to each term of that equation.
(you can also do something similar by adding equations--as long as you get rid of of that variable...and if your coefficients aren't the same to begin with, just multiply both sides of one of those equations to get them equal.)
Now, we just use that y = -3 to find x.
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Answer:
Both sizes are better because they cost Same.
Step-by-step explanation:
Consider the provided information.
A coupon offers $1.00 off the 16
Quantity Price
Pint 16 $3.98
Quart 32 $5.98
If he gets $1 off for the 16-ounce size. The price will be:
3.98-1=2.98
He needs to pay $2.98 for 16-ounce pint.
Now find which one is better by calculating the unit rate.
Therefore, the cost of 1lb would be $0.186
For Quart 32 find the unit rate as shown:
Therefore, the cost of 1lb would be $0.186
Hence, both of the size are better as the unit rate is same.