1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tresset_1 [31]
4 years ago
7

Yesterday, teddy played a game repeatedly on his computer and won exactly 85% of the games he played. today, teddy played the sa

me game repeatedly, winning every game he played, until his overall winning percentage for yesterday and today was exactly 94%. what is the minimum number of games that he played today?
Mathematics
2 answers:
Marat540 [252]4 years ago
6 0

Answer:

30 games

Step-by-step explanation:

As a reduced fraction 85% is equal to 85/100 = 17/20. Therefore, the number of games Teddy played yesterday must have been a multiple of 20. Suppose Teddy played 20m games, so he won 17m games.

Also, suppose Teddy played n games today. As a reduced fraction, 94% is equal to 94/100 = 47/50. Since Teddy won every game he played today, we have

(17m + n)/(20m + n) = 47/50

Cross-multiplying, we get 850m + 50n = 940m + 47n. Then 3n = 90m, so n = 30m. Therefore, the minimum number of games that Teddy played today is 30.

Eduardwww [97]4 years ago
5 0
The equation we use here is:
(0.85)x +(1.00)y = (0.94)(x + y)
x is for the number of games he played on first day, y is the games on second day. The coefficients are the decimal form of percentages.

Simplify:
0.85x + y = 0.94x + 0.94y \\ \\ 0.06y = 0.09x \\ \\ \frac{6y}{100} = \frac{9x}{100} \\ \\ 6y = 9x \\ \\ 2y = 3x

To find x we need to use the ratio. We have 85/100 as the first day's ratio and because the games needs to be whole, we can simplify this as 17/20. So in first day, he played at least 20 games and won 17 of them.

When we plug the 20 into the equation as x:
2y = 3 \times 20 \\ \\ 2y = 60 \\ \\ y = 30
So he needs to play at least 30 games in order to get his score to 94%.
You might be interested in
what is the value of 1/6 (square root of 36÷3 to the power of negative two) + 4 to the power of three ÷|-8|
Nikitich [7]
The answer is to that question is 9.
6 0
4 years ago
Ray delivered 3/8 of the newspapers on his route in the first hour and 4/5 of the rest in the second hour what fraction of the n
Temka [501]

Answer:

\frac{1}{2}

Step-by-step explanation:

Let the total number of Newspapers be x

Number of newspapers delivered in first hour of his route= \frac{3}{8} of x

Total number of newspapers delivered in first hour= \frac{3}{8}x

Number of newspapers left= x-\frac{3x}{8}

Number of newspapers left=\frac{8x-3x}{8}

Number of newspapers left=\frac{5x}{8}

Number of newspapers delivered in second hour=4/5 of\frac{5x}{8}

Number of newspapers delivered in second hour=\frac{x}{2}

Fraction of newspapers delivered in second hour is=\frac{1}{2}

Hence, the correct answer is \frac{1}{2}

8 0
4 years ago
Is Did Jose watch television last night?a statical question
Alex777 [14]

Answer:

It is not a statical question, because it does not have a variety of answers

Step-by-step explanation:

A statical question is one that can be answered by collecting data and where there will be a variability in the data.

3 0
4 years ago
Read 2 more answers
How do i solve this oasdkbngbg
Aleksandr [31]

Answer:

the answer is he fourth one

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
SHOW YOUR WORK<br> 9 ÷ 4.5 = ?
Dahasolnce [82]

Answer: 2

Step-by-step explanation:

Change the divisor 4.5 to a whole number by moving the decimal point 1 places to the right. Then move the decimal point in the dividend the same, 1 places to the right.

We then have the equations:

90 ÷ 45 = 2

and therefore:

9 ÷ 4.5 = 2

8 0
3 years ago
Other questions:
  • Convert 2.998m/s to km/h and to miles per hour
    14·1 answer
  • How many sides does a regular polygon have if each exterior angle is 24°? how do you know?
    12·1 answer
  • Which tool is used to hold workpieces tightly so that both of your hands can be free to work on them?
    14·2 answers
  • Which pair of triangles is congruent by AAS
    7·1 answer
  • What is the y-intercept of the graph of the equation y=4(3x)?
    11·2 answers
  • Can someone help with questions 5 -9
    6·1 answer
  • What is 3.63x10/8 in standard notation
    6·2 answers
  • It is estimated that only 68% of drivers wear their safety belt.
    5·2 answers
  • Helpppppppppppppppppppppppppppppppppppppppppppp
    13·1 answer
  • 1+1=2
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!