Your answer is B) 12y = 4
You can find this by first rearranging the equation x + 3y = -2 to the form ‘x =‘:
x = -2 - 3y.
Then you can substitute this into the second equation, 2x - 6y = -8, and expand and solve:
2(-2 - 3y) - 6y = -8
-4 - 6y - 6y = -8
-12y = -4
Now because we know that -12y = -4, this is equivalent to 12y = 4, which is option B.
I hope this helps! Let me know if you have any questions :)
The expression we need to solve is:
To solve this problem, we need to not that we can simplify the fraction 2/10 by dividing both number by 2:
Answer:
176 grams of zinc.
Step-by-step explanation:
4/9 = x/396 where x = the number of grams of zinc.
Cross multiply:
9x = 4*396
x = 4*396/9
x = 176 grams.
Answer:
Lets say you have 40 apples and 17 "peats". You decide to give your friend, Timmy, 2/3's of the apple, because you know that he loves apples! You also give him 2/7 of your "peats". How many apples and peats, combined, does that leave you with?
Step-by-step explanation:
There really is none.
Answer:
3 months
a quarter is a period of three months
Step-by-step explanation:
