Class A has 13 pupils and class B has 12 pupils. Both classes sit the same maths test. The mean score for class A is 68. The mean score for both classes is 45. What is the mean score (rounded to 2 DP) in the maths test for class B?

people grow faster than other people.

step-by-step explanation:

should you really be posting this isn't math boi.

answer: when you burn wood, the carbon reacts with the oxygen in the air to create ash and smoke. that is a permanent change you cannot undo that.

step-by-step explanation:

dalila is incorrect. the whisker on the left is very long, going all the way out to 5. the whisker goes from 5 to 30, so it has a spread of 25. the rest of the box plot values are closer together, so 5 is an outlier

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.