I believe that 30.5 as a fraction is 30 and 1 half but don't take my word
You would need too do 5*5=25 if you did 5*7=35 that would be wrong
Answer:
50 of D and 10 of C
Step-by-step explanation:
First of all, put this data into 2 equations.
You sold 60 items, so C+D=60
C is $5 so we can represent it by 5C
D is $7 so we can represent it by 7D
You made $400 total from C and D, so 5C+7D=400
We can use simultaneous equations to solve this.
To eliminate one of these variables, we'll multiply the first one by 5 to make it 5C like the other.
5(C+D=60) (make sure you multiply both sides.)
so 5C+5D=300
5C+7D=400
Now we solve it:
5C-5C+7D-5D=400-300
7D-5D=100
2D=100
D=50
Now we can substitute this with one of the equations to find C
C+50=60
C=60-50
C=10
so, (10x5)+(50x7)=400
336*2 = 672 for area of the rectangle formed by triangle.
672/48 = 14 for side length. (14*48=672)
14^2 + 48^2 = hypotenuse^2
hyp = 2500^.5 = 50
Neither a relation nor a function because their a negative 3
and that's a non function