So 80% of 15 games won equal 12 games won and 3 lost. This is because 15/10 = 1.5 and 1.5 x 8 =12.
For 30, you do the exact same thing but with 90% instead. 30/10 = 3. 3 x 9 = 27.
So they need to have won 27 games to get a 90% winning percentage out of 30 games.
But since the question asks how many MORE games they need to play, it'll be 27-12 = 15.
So they need to win 15 more games to get a 90% winning percentage
Answer:
20
Step-by-step explanation:
Basically, Yout take 60 and divide it by the number 3 and you get 20. Doing the inverse operation (opposite).
Answer: reflection
Translation
Rotation
Rotation
Step-by-step explanation:
Answer:
x^2+x + 1/4
Step-by-step explanation:
x^2+x
Take the coefficient of x
1
divide by 2
1/2
Square it
(1/2)^2 = 1/4
Add this to make a perfect square trinomial
Answer:
-9
Step-by-step explanation:
36 ÷ (1 - |2 - 7|) =
Start with the calculation inside the absolute value.
= 36 ÷ (1 - |-5|)
Now take the absolute value of -5 which is 5.
= 36 ÷ (1 - 5)
Do the operation inside the parentheses, 1 - 5 = -4.
= 36 ÷ (-4)
Finally divide. Remember that positive divided by negative is negative.
= -9
