Answer:

Step-by-step explanation:
Total number of tickets sold = 3388
Total number of coach tickets = 3069
Total number of first-class tickets = Total number of tickets sold - Total number of coach tickets
= 3388 - 3069
= 319

Ratio of the number of first-class tickets to the total number of tickets = 319:3388
Answer:
128
Step-by-step explanation:
Split the shape into a triangle and a rectangle.
The base of the triangle is 12 cm.
The height of the triangle is the height of the whole shape minus the height of the rectangle, which is: 14-11=3.
We know that the formula for the area of a triangle is 0.5xbxh
Therefore, the area of the triangle is 0.5x12x3 = 18.
NOW, lets work out the area of the rectangle.
The formula for the area of the rectangle is bxh.
= 11*10
= 110.
Now you add the area of the triangle to the area of the rectangle
18+110.
= 128.
Answer:
principal (p)=$1895
time (t)=4years
rate(r)=7.9%
Step-by-step explanation:
- compound interest amount=p((1+r/100)^t-1)=$1895((1+7.9/100)^4-1)=$1895×((1.355)-1)=$1895×(0.355)=$672.725
- simple interest=ptr/100=$1895×4×7.9/100=$598.82
She sailed for 7 hours and she sailed 77 hours in all