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
Alex787 [66]
4 years ago
13

Mark receives $2,200 a month in income. He wants to put 14% into a college savings account. How much money should he put into th

e account?
Mathematics
2 answers:
KiRa [710]4 years ago
4 0

Answer:

308 dollars

Step-by-step explanation:

Really all we have to do, is find 14 percent of 2200. We can do this by dividing. Our resoulution is 308.

bulgar [2K]4 years ago
4 0

The amount he should put in the college savings account \bold{ \$308}

<u>Solution:</u>

Given, income of Mark = \$ 2200

Percentage of amount in college savings account = 14 \%

To find: The amount he should put in the college savings account

<em>This can be solved in two methods as follows:</em>

Method 1:

As given, Mark puts 14\% of the total amount in the account

i.e. 14\% \ of \ 2200 \Rightarrow \frac{14}{100}\times 2200

On solving,

\Rightarrow \frac{30800}{100} = \$ 308

Method 2:

So, here assume that 100 corresponds to 2200

As given, Mark puts 14\% of the total amount in the account

i.e. 100\times22=2200

\therefore 14\times22=308

Hence, the amount is \$308

You might be interested in
Which of the following values of y will result in a true statement when substituted into the given equation?
alexgriva [62]
Answer: A

Explanation: y = -0.8
4 0
3 years ago
Read 2 more answers
How many kilograms are equivalent to 450 grams?<br> I need step by step explanation please
Flauer [41]

Step-by-step explanation:

0.45 kilograms. you decide the mass value by 1000.

7 0
3 years ago
Find X<br> PLS HELP I WILL MARK BRANILIEST
elena-14-01-66 [18.8K]
It is B and you put it next to the B
3 0
3 years ago
The total number of seats in an auditorium is modeled by f(x) = 2x² - 12x, where x represents the number of rows of seats. How m
steposvetlana [31]
320 = 2x² - 12x as when there are an unknown number of rows there are 320 seats.
0 = 2x² - 12x - 320
0 = x² - 6x - 160
0 = (x - 16)(x + 10)
for this to = 0 one bracket must equal 0
therefore x = 16 or x = -10
not a negative number of rows.

Therefore must be 16.
3 0
4 years ago
A company with a fleet of 150 cars found that the emissions systems of only 4 out of the 25 they tested failed to meet pollution
salantis [7]

Answer:

No, there is no strong evidence that the percentage of the fleet out of compliance is different from their initial thought.

Step-by-step explanation:

We are given that a company with a fleet of 150 cars found that the emissions systems of only 4 out of the 25 they tested failed to meet pollution control guidelines.

The company initially believed that 30% of the fleet was out of compliance.

<u><em>Let p = percentage of the fleet that was out of compliance.</em></u>

SO, Null Hypothesis, H_0 : p = 30%   {means that the percentage of the fleet out of compliance is same as their initial thought}

Alternate Hypothesis, H_A : p \neq 30%   {means that the percentage of the fleet out of compliance is different from their initial thought}

The test statistics that will be used here is <u>One-sample z proportion</u> <u>statistics</u>;

                                 T.S.  = \frac{\hat p-p}{{\sqrt{\frac{\hat p(1-\hat p)}{n} } } } }  ~ N(0,1)

where, \hat p = percentage of the fleet out of compliance = \frac{4}{25} = 16%

           n = sample of systems tested = 25

So, <u><em>test statistics</em></u>  =  \frac{0.16-0.30}{{\sqrt{\frac{0.16(1-0.16)}{25} } } } }

                              =  -1.909

The value of the test statistics is -1.909.

<em>Since in the question we are not given with the level of significance at which hypothesis can be tested, so we assume it to be 5%. Now at 5% significance level, </em><u><em>the z table gives critical values between -1.96 and 1.96 for two-tailed test.</em></u><em> </em>

<em>Since our test statistics lies within the range of critical values of z, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which we fail to reject our null hypothesis.</em>

Therefore, we conclude that the percentage of the fleet out of compliance is same as their initial thought.

3 0
3 years ago
Other questions:
  • Write three rational expressions that simplify to (x+1)/(x-1)
    13·1 answer
  • Help fill in the blanks thanks
    5·1 answer
  • Find x such that 3^x = 27 mod 32 (b)
    13·1 answer
  • What is The function of x
    15·1 answer
  • What is the distance between the points (7.8) and (-8, 0) on a coordinate grid?​
    13·1 answer
  • What are the x- and y-intercepts of the line 6x−y=10?
    9·1 answer
  • Once again Bri needs help so ya btw make it a step-by-step please
    8·2 answers
  • 999+6666+8888+66654+66=
    9·1 answer
  • The graph of a linear function f passes through the point (3, -10) and has a slope of -5. What is the zero ?
    7·1 answer
  • Given sin⁡θ=1/2 determine the value of sec θ. 0°&lt;θ&lt;90°
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!