John has the highest direct labour costs of <span>$1548.80. Obtain the number of hours worked by multiplying the number of hours available by the percentage of time that is not personal time. Obtain the proportion of overhead rate by multiplying the percentage of overhead rate by the rate in dollars per hour. Finally, multiply the two products obtained to get direct labour costs for each individual.</span>
Answer: the boy won 10 games
Step-by-step explanation:
Let's call B as the number of games won by the boy, and F as the number of games won by the father.
We know that, there is a total of 26 games:
B + F = 26.
We know that in each game won by the boy, he wins 8 cents, for every game that the father wins, the boy losses 5 cents, and we know that at the end of the 26 games, the boy did not win or lose any money, so we have:
B*8 + F*(-5) = 0.
Then we have a system of equations:
B + F = 26
8*B - 5*F = 0.
The first step is isolating one of the variables. Let's start isolating F in the first equation:
B + F = 26
F = 26 - B.
Now we can replace this in the second equation:
8*B - 5*F = 0
8*B - 5*(26 - B) = 0
8*B + 5*B - 5*26 = 0
13*B = 5*26
B = 5*26/13 = 5*2 = 10
So the boy won 10 games (then the father won the other 16 games)
The <em>correct answer</em> is:
What objects we're comparing.
Explanation:
In a picture graph, symbols are used to represent the data being displayed. For example, if we took a survey on the types of foods people preferred at a cookout, we could use a picture of a hamburger, a picture of a hot dot and a picture of a chicken leg.
We cannot tell anything about the amounts in the graphs just by comparing the symbols.
