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)
Answer:
8
Step-by-step explanation:
(dont mind my spelling im bad at that)so seeing that one hot dog is 5 dollors
and two hotdogs would cost 10 dollors and that would leave 20 dollors to spend and seeing that one taco is 2 dollors and 50 cents we need to figure out how many times does 2.50 go into 20 which is 8 so eva can buy 8 tacos along with 2 hot dogs
X< or = 5....
After the jeans she has $30 remaining. Divide $30 by costs of each shirt...30/6, which equals 5. Meaning she can purchase 5 shirts max, assuming there's no tax.
Answer:
5.7 + 2.5/10x ≥ 8
where x is the artistic score
Step-by-step explanation:
if the technical score is 7.6/10 = 76% of 75% = 0.57 out of 10.
there are still 2.5 more points that can be obtained, so the gymnast needs 8 - 5.7 = 2.3 out of 2.5 possible points
the inequality would be:
5.7 + 2.5/10x ≥ 8
where x is the artistic score
2.5/10x ≥ 8 - 5.7
2.5/10x ≥ 2.3
x ≥ (2.3 x 10) / 2.5
x ≥ 9.2
The answer is A. Y=square root of 2x
