x= morning
y = afternoon
x + y = 10
x=10-y
5x + 6y =57
5(10-y) +6y =57
50-5y +6y =57
y=7
x=10-7 =3
check 3*5 = 15, 7*6 = 42, 42 + 15 = 57
3 morning practices
To find the mean, add the numbers, and divide by the amount of numbers there is.
(82 + 105 + 247 + 119 + 94 + 202)/6
Simplify. Remember to follow PEMDAS. First, add
(849)/6
Next, divide by 6
849/6 = 141.5
141.5 should be your answer
hope this helps
29.8 would be the number, but rounded would be 30
This is a linear equation in x.
So you need to group like terms

Let us group the x terms on the Right Hand Side of the equation and the constant terms on the Left Hand Side.

We can now simplify

Now let us divide both sides by 3.

This implies that

or

Let us our answer



Good we are right