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
Goshia [24]
3 years ago
6

a student played a computer game 500 times and won 370 of these game. he then won the next "x" games and lost none. he has now w

on 75% of fhe games he has played. find the value of "x"
Mathematics
1 answer:
a_sh-v [17]3 years ago
3 0

So, this is a proportion problem. If we express 75% as a fraction (3/4ths), we have:

\frac{370+x}{500+x}=\frac{3}{4}

Since he won all of his games, we add the number won (x), to the number previously won and divide it by the total games played which is just the previous games played plus the number of current games played, so since he lost no games we still add x to the denominator as well. Solving this gives us:

4(370+x)=3(500+x) \implies\\ 1480+4x=1500+3x \implies \\ x=20

That x value is 20.

You might be interested in
Determine if each pair or ratio or rate is equivalent. 16 out of 28 and 240 of 560
Keith_Richards [23]

Those ratios are not equivalent because 240 divided by 16 is 15 and 560 divided by 28 is 20.

5 0
3 years ago
Given the equation f(x) = (x + 3)2 – 8, fill in the blanks:
telo118 [61]
Axis of symmetry -3 and -8 or 3 and -8 

6 0
3 years ago
1.
vagabundo [1.1K]

\left(\sqrt x - \sqrt{3y} \right) \left(\sqrt x + \sqrt{3y} \right)\\\\=\left(\sqrt x\right)^2 - \left(\sqrt{3y} \right)^2\\\\=x -3y

7 0
2 years ago
Read 2 more answers
Tonja is a married taxpayer who claims 2 withholding allowances. She earns
viva [34]

The amount that Tonja will save in Federal Income and FICA Taxes if she has her childcare expenses deducted from her check before taxes is: $26.17

<h3>What is Federal Income Tax?</h3>

Federal Income Tax is a tax that is levied by the Federal Government and most states in the United States of America. It comprises of 7 tax rates.

<h3>What is FICA Tax?</h3>

FICA Tax is a Federal Insurance Contributions Act Tax. This tax is levied on every payroll of employees to fund Social Security and Medicare programs. This is divided into two parts:

  • Social Security Tax which is 6.2% and
  • Medicare Tax which is 1.45%. The total is 7.65%

How to calculate Tonja's Tax before deduction

Federal Tax rate first level is 10% on 0$ - $19,900.

1) Hence, the first tax is 10% on $600, which is $60

2) The next tax is FICA. This is applied to the Gross Pay of $600.

Applying both taxed under FICA we have 7.65% * $600 = $45.9

Total Tax before a deduction is:

$60 + $45.9 = $105.6

The Tax Payable if childcare expenses is deducted first will be:

10% on $450     = $45

7.65% on $450 = $34.43

Total                   = $79.43

Hence the tax savings will be:

105.6 - 79.43 = $26.17

Learn more about FICA Tax at:
brainly.com/question/3214345


3 0
2 years ago
Rob draws 16 cards from a standard deck of 52. The deck is made up of equal numbers of four suits- clubs, diamonds, hearts, and
alexira [117]
Sixteen plus fifty two equals 68
8 0
3 years ago
Other questions:
  • Is a rectangle a square
    11·2 answers
  • Use math notation to describe the following sequence: <br> 1, -1, 1, -1,...
    6·1 answer
  • [10 Points, Algebra 2-simplifying complex fractions]
    5·1 answer
  • Sue knows that the perimeter of the triangle to the right is 13 inches. Can she find the length of the missing side? Explain
    9·1 answer
  • Customers can pick their own pumpkins at the great pumpkin patch. They pay $4 to enter and $3 per pound for the pumpkins they pi
    5·2 answers
  • The sale price of a drum kit in the UK is 950 Pounds + VAT (Value Added Tax), where VAT is a sales tax of 20%. After some negoti
    14·1 answer
  • What is c equal to in the equation 7c - 4 = 3c + 20
    10·1 answer
  • Find the values of x and y.
    5·1 answer
  • Write an equation to find x by substituting.
    5·1 answer
  • The product of two consecutive even integers is 2208. What is their sum?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!