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
skad [1K]
3 years ago
8

Raj and Aditi like to play chess against each other. Aditi has won 12 of the 20 games so far. They decide to play more games. Ho

w many more games will Aditi have to win to have a 70% winning record? 12 + x = 0.70(20 + x) x = ≈ 6.67 She will have to win 7 more games to have a 70% winning record. How many more games will Aditi have to win to have an 80% winning record? The linear equation that models this is . Aditi would have to win more games to have an 80% winning record.
Mathematics
2 answers:
Over [174]3 years ago
4 0
12 + x = 0.80(20+x)
12 + x = 16 + 0.80x
12 = 16 -0.2x
-4 = -0.2x

x = -4/-0.2 = 20
 they need to win 20 more games


Ugo [173]3 years ago
4 0

Answer:

20

Step-by-step explanation:

We are given that she have to win games  to have a 70% winning record :

12 + x = 0.70(20 + x)

x = 6.67

So, She will have to win 7 more games to have a 70% winning record.  

Now we are supposed to find how many more games will she have to win to have an 80% winning record

So, equation becomes:

12 + x = 0.80(20 + x)

12 + x = 16 + 0.8x

x-0.8x= 16 -12

0.2x= 4

x= \frac{4}{0.2}

x=20

You might be interested in
If x = 4, y = 2 and z = 1 then xz (4y - 2z) is: 861, 24, 46, or 40. Help please.
dybincka [34]
(4)(1) * (4(2)-2(1))
4 * (8-2)
4*6
24
8 0
3 years ago
How would you graph -x plus 2 thx
alexira [117]
F(x)= -x + 2

Plug in the X and you will find the Y
3 0
3 years ago
SIMPLE SEVENTH GRADE MATH PROBLEM. GOVING BRAINLIEST
adelina 88 [10]

Answer:

D is the answer

Step-by-step explanation:

Well 35 dollar one time fee

plus 15 per hour

If used 1 hour 15+35=50

5 0
3 years ago
Read 2 more answers
PLEASEE HELP QUICKLY
umka21 [38]
It’s letter B bro because
7 0
3 years ago
A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?
IgorC [24]
Direct variation mean x =ky so y = x/k

(2,14) mean y = kx so 14 = k*2 so 14 = 7*2 so 14 = 14 
(4,28) mean y = kx so 28 = k*4 so 28 = 7*4 so 28 = 28

from these result that the 3rd choice is right sure 


6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the length of each side of a cube if the volume is 343 in 3
    5·1 answer
  • The graph of f(x) = |x| is transformed to g(x) = |x + 1| – 7. On which interval is the function decreasing?
    14·2 answers
  • Repeated-measures experiments measure the same set of research participants two or more times, while matched-subjects experiment
    15·1 answer
  • Graph the rational number and its opposite b) -1.75
    14·1 answer
  • Can you please help me with this question I would really appreciate it ​
    5·2 answers
  • marias mother told her to go to the health food store and buy 10 pounds of apples each bag weighed 5 pounds and contained 15 app
    7·1 answer
  • Which of the following scatter plots below show the most accurate line of best fit
    13·1 answer
  • It takes about fifteen minutes walk one dog. How many hours does it take to walk 25 dogs separately?
    6·2 answers
  • A line passes through the point (-2,3) and has a slope of 5/2
    9·1 answer
  • The blue dot is what value on the number line -6 -10
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!