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
Annette [7]
3 years ago
5

6. Mr. Jackson has $60 to spend on supplies for his

Mathematics
1 answer:
shusha [124]3 years ago
5 0

Answer: $12.54

Step-by-step explanation:

7 times $4.32 = $30.24

14 times $1.23 = $17.22

add both sums which = $47.46

now subtract $60.00 by $47.46

now equals $12.54 HOPE THIS HELPED!!

You might be interested in
PLz help me! We r doing semester finals and i need to get this lesson finished in 2 hours so i can get my grade up!
Leto [7]

Answer:

$84

Step-by-step explanation:

1. If 20% is marked off, then you are selling it for 80%.

2. 455 * 80% = 364

3. Since you are finding the cost markup from 280, then 364-280=84

6 0
2 years ago
Question 14 of 15<br><br><br> Evaluate (3/4)x^0
stiks02 [169]

Answer:

I'm not sure if this is right, but I got 3/4. (0.75 as a decimal) I hope this helps!

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
An airplane has 100 seats for passengers. Assume that the probability that a person holding a ticket appears for the flight is 0
zmey [24]

Answer:

96.33% probability that everyone who appears for the flight will get a seat

Step-by-step explanation:

I am going to use the binomial approximation to the normal to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that \mu = E(X), \sigma = \sqrt{V(X)}.

In this problem, we have that:

n = 105, p = 0.9

So

\mu = E(X) = np = 105*0.9 = 94.5

\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{105*0.9*0.1} = 3.07

What is the probability that everyone who appears for the flight will get a seat

100 or less people appearing to the flight, which is the pvalue of Z when X = 100. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{100 - 94.5}{3.07}

Z = 1.79

Z = 1.79 has a pvalue of 0.9633

96.33% probability that everyone who appears for the flight will get a seat

7 0
2 years ago
Austin opened a bank account. He deposited $100 on Monday and $70 on Tuesday.
shutvik [7]

Answer:

22 weeks

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
2ab + a^3 +5a^2b^2 - 2b^3<br> Need help i have to write this in standard form
german
2ab + a^3 + 5a^2b^2 - 2b^3
= a^3 - 2b^3 + 2ab + 5a^2b^2 (this is the expression in standard form)
4 0
3 years ago
Read 2 more answers
Other questions:
  • a recipe for quinoa calls for 2 2/3 cups of milk. conner wants to make 4 batches of quinoa. how much milk does he need?
    5·1 answer
  • Can anyone help me with this problem?<br><br>3a=9a^2-30​
    8·2 answers
  • Bridget has opened a new clothing boutique. When would you say that the clothes she sells are in demand?
    8·2 answers
  • Hadlee got 18 out of 20 questions correct on her math quiz. What percent of the questions did she get right?​
    12·2 answers
  • 60.8 is what percent of 32
    5·1 answer
  • A bottle containing 64 fluid ounces of juice costs $3.84. What is the unit rate?
    8·2 answers
  • I rolled a standard 6 sided die a total of 20 times and got the results as shown in the table below. Calculate the THEORETICAL p
    10·2 answers
  • 200,000,000 in scientific notation
    10·2 answers
  • What two integers does 226 lie between?
    9·1 answer
  • What are the lengths of the sides of this equilateral triangle
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!