Step-by-step explanation:
the second equation should be multiplied by 9
Answer:
260cm²
Step-by-step explanation:
area of this parallelogram 20×13=260cm²
Area of a triangle=1/2(base x height)
Area=72, Base=8, Height=2x-3
Plug it in.
72=1/2(8 x (2x-3))
72=1/2(16x-24)
72=8x-12
84=8x
x=10.5
Answer:
2/3
Step-by-step explanation:
17/21-1/7
17/21-3/21
14/21=2/3