X=6
y=7
6+7
= 13
1/2(6) + 7
= 3 +7
=10
Answer:
i would say 40 for 4$
Step-by-step explanation:
bc ur getting double amount for 2$ and it will last longer
To solve the problem you must find the area of every square. For F one of the squares has a side length of 3 and because this is a square the other sides are also 3. To find the area we multiply two of the sides so 3 times 3 is 9
You do this with both the other squares
3*3=9
4*4=16
The area of the large square is given as 25
So 9+16=25 which means this is not the correct answer
H.
9*9=81
Given as 144
The area of the large square is 21*21 which is 441
144+81= 225
So because the two small squares DO NOT equal the area of the large square this is the correct answer.
ANSWER
The solution is
EXPLANATION
We want to solve the simultaneous equations
and
.
We substitute equation (2) in to equation (1), to obtain
This has now become a linear equation in a single variable .
We solve for x by grouping like terms.
We divide through by negative 3 to get;
.
Hence, the solution is