Here are the test marks of 6 girls and 4 boys .

girls: 5 3 10 2 7 3
boys: 2 5 9 3

work out the mean mark of all students.

Mean is 4.9 or 5 rounded.

Step-by-step explanation:

5+3+10+2+7+3+2+5+9+3/10 = 4.9

Mean is founded where you add all of your numbers and divide it by how many numbers their were.

5+3+10+2+7+3+2+5+9+3=49 divided by 10 = 4.9

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2