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A grill at a barbecue restaurant will be used to cook sausage links that are 2 lbs and briskets that are 6 lb each. No more than
2 answers:
Answer:
(which I believe is option B, although it seems to have some typos)
Step-by-step explanation:
We know that the total amount cannot be more than 120lb. This means that one side of our inequality is
.We also know that each sausage (x) weighs 2lb, and each brisket (y) is 6 lb.
Thus, every x must contribute 2lb to the total in the inequality, and every y must contribute 6lb. This means another side of our equation must be
Thus, our equation must be
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Answer:
x=5, y=2
Step-by-step explanation:
To solve this system, we need to find x and y. First, let's find x. In the first equation (6x+4y=42), subtract 4y on both sides to isolate 6x. This will result in 6x=42-4y. Divide by 6 on both sides to isolate x and get x=7-y. Now we know what x equals. Go to the second equation ad plug this into it. So instead of -3x+3y=-6, you'll have -3(7-
y)+3y=-6. Use the distributive property to get -21+2y+3y=-6. Add 2y and 3y to get -21+5y=-6. Add 21 to both sides to isolate 5y and get 5y=15. Divide by 5 on both sides to isolate y and get y=3. Now that we know that y=3, we can plug this back into the equation that was bolded above so that we can find x, so we'll have x=7-
(3) since y=3, and we'll get x=7-
, or x=7-2, or x=5.
x=5
y=2