X would be 4 so the answer is B
It is given that
a+b=20 -------------------- (1)
b+c=30 -----------------------(2)
We have to calculate
3 a + 4 b +7 c
Now multiplying equation(1 )by 3,we get
3 a+ 3 b=60 ----------------------------------(3)
and Multiplying equation( 2) by 4,we get
4 b + 4 c=120 -----------------------------------(4)
Adding expression (3) and (4),we get i.e left hand side of 3 to left hand side of 4 and right hand side of 3 to right hand side of 4.
3 a+ 3 b+ 4 b+ 4 c=60+120
Adding like terms, we get
3 a+ 7 b+ 4 c =180, Which is the required solution.
The answer would be 7 1/2 because you would add 1 1/2, 2 1/2,3 1/2 so there you go
This makes no sense could you rewrite it please
Lets reduce the equation.
8.35x = 4.25x + 36.90
8.35x - 4.25x = 36.90
4.10x = 36.90
X = 9
1 bag a of assorted fruit cost $4.10 how much will it cost if I want to buy 9 bags of assorted fruit.