Answer:
85sq. cm
Step-by-step explanation:
The figure can be divide into 2 rectangles
Area of a rectangle = length * width
For the first rectangle
Area = 9cm * 5cm
Area = 45cm^2
For the second rectangle
Area = 10cm * 4cm
Area = 40cm^2
Area of the figure - 45 + 40
Area of the figure = 85sq. cm
Answer:
Nina practiced the viola for 11.25 hours last week.
Step-by-step explanation:
Juan practiced the violin for 9 hours last week. For each 3 hours that he practices the violin, he practices 2.5 hours of cello. So
3h violin - 2.5h cello
9h violin - xh cello
He practiced 7.5 hours of cello, the same as Nina.
For every 3 hours Nina spends practicing the viola she practices the cello for 2 hours. So:
3h viola - 2h cello
xh viola - 7.5h cello
Nina practiced the viola for 11.25 hours last week.