Answer:
x=6/7 and y=18/7
Step-by-step explanation:
If y = 3x and 2x + 4y = 12,
then substitute the value of y with 3x
2x + 4(3x) = 12
2x+12x=12
14x=12
x=12/14=6/7
y=3x=3*(6/7)=18/7
Answer:
1/25
Step-by-step explanation:
Well, in order to figure this out, we need to figure out how many times 4 goes into 100, because it is 4 out of 100%.
So if you divide 100 by 4 you get 25, which means 4 goes into 100 25 times.
So the fraction would be 1/25 of the number.
Hope this helps :)
For this case we have the following expression:
Applying distributive property to the terms within parentheses we have:
We add similar terms on both sides of equality considering that:
Equal signs are added and the same sign is placed.
Different signs are subtracted and the major sign is placed.
We add 7.5x to both sides of equality:
We subtract 72 from both sides of equality:
We divide between 3 on both sides of equality
ANswer:
Distributive property
Add similar terms
Equality property of the sum
Equality subtraction property
Equality property of the division