Only two triangles:
The 90* angle is stable, so you can change only the position of the 50* and 40* angles.
1 triangle: 40* is right to the 90*
2 triangle: 40* is left to the 90*
Hope this helped you!
we have
6x+7y=4x+4y
we figure out that
the solution is ----> (x,-4)
substitute the value of y=-4 in the equation
6x+7*(-4)=4x+4*(-4)
6x-28=4x-16
Combine like terms
6x-4x=28-16
2x=12
x=12/2
x=6
So the the missing value is x=6.
So in this equation you simply have to find the unit rate.
For question A you would have to do $2.04/8 which give you 0.255 which rounded is $0.26
For question B you would have to do $3.07/12 which gives you 0.25583333 which rounded is $0.26
Therefore their rounded price would be the same but if you have to choose between either either then Option A would be the better option.
400= 80×5. Bold=prime
/\
4 × 20
/\ /\
2×2 4×5
/\
2×2
2×2×2×2×5×5 is the prime factorization of 400.
