Answer:
decrease of 5%
Step-by-step explanation:
always start of by finding 10% which would be 100 students
1000-100=900
you would still have 50 students left
half of 100 is 50 so half of 10% is 50 students
5%=50 students
4(5)+4(3)+3(2)=$38 total cost =$38
Answer:
105 cm²
Step-by-step explanation:
The figure is composed of a rectangle and a triangle
area of rectangle = 15 × 6 = 90 cm²
area of triangle =
bh ( b is the base and h the height )
Here b = 15 - 9 = 6 and h = 11 - 6 = 5 , thus
area of triangle =
× 6 × 5 = 3 × 5 = 15 cm²
Total area = 90 + 15 = 105 cm²