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
Marysya12 [62]
2 years ago
11

How do you solve this

Mathematics
1 answer:
brilliants [131]2 years ago
5 0
First, ask somebody else like your teacher, also use your brain

You might be interested in
The demand for a daily newspaper at a newsstand at a busy intersection is known to be normally distributed with a mean of 150 an
AURORKA [14]

Answer:

171 newspapers.

Step-by-step explanation:

Problems of normally distributed samples are 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.

In this problem, we have that:

\mu = 150, \sigma = 25

How many newspapers should the newsstand operator order to ensure that he runs short on no more than 20% of days

The number of newspapers must be on the 100-20 = 80th percentile. So this value if X when Z has a pvalue of 0.8. So X when Z = 0.84.

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

0.84 = \frac{X - 150}{25}

X - 150 = 0.84*25

X = 171

So 171 newspapers.

4 0
3 years ago
Jaime placed $2800 in a savings account which earns 4.3% interest compounded annually. How much will she have in the account aft
Rasek [7]

Answer: $4840

Step-by-step explanation:

A = p(1+r/n)^nt

A = 2800(1+0.043)^13

A = 4840

7 0
2 years ago
Nuts.com sells raw almonds for $10 per pound and roasted pistachios for $12 per pound. Christopher spends $70, before taxes and
galben [10]

Answer:

second equation

Step-by-step explanation:

10a + 12p = 70  (10 goes with almonds [a], 12 goes with pistachios[p], $10 and $12 is price per pound and $70 is total price, so that's why its = to 70)

a + p = 6.3        (this is total almonds and pistachios adding up to 6.3 pounds)

a = pounds of almonds

p = pounds of pistachios

3 0
2 years ago
Given that (-6,2) is on the graph of f(x) find the corresponding point for the function f(1/4x).
Dafna1 [17]
Answer: (-24,2)

=======================================

Work Shown:

The y coordinate stays the same. Only the x coordinate will change.

(1/4)*x = -6
x = -6*4
x = -24 is the new x coordinate
Plugging x = -24 into f((1/4)x) leads to f(-6) = 2

7 0
3 years ago
A bag contains 4 red marbles, 2 blue marbles, 1 purple marble, and 3 green marbles.
STatiana [176]

Answer:

10 outcomes

Step-by-step explanation:

The number of outcomes is the number of marbles in the bag since we are taking out one marble

4+2+1+3 = 10

There are 10 outcomes

7 0
3 years ago
Other questions:
  • More help with math guys, I need all the help i can get
    7·1 answer
  • Susan has $80. She spends 3/5 of the money on Monday. She spends the remaining money equally over the next five days. How much m
    15·2 answers
  • ​John's House of Pancakes uses a weighted moving average method to forecast pancake sales. It assigns a weight of 5 to the previ
    14·1 answer
  • I need help please, i don’t not understand
    12·1 answer
  • Identify the equation of the parent function y=x^3 that is horizontally streched by a factor of 1/5 and reflected over the y axi
    12·1 answer
  • The graph below shows the eye color for a classroom of students.
    8·1 answer
  • What is 15 divided by 1/5?
    10·2 answers
  • Solve for x 4(1-x)+2x= -3(x+1)
    13·1 answer
  • I have to try and find the volume of the cone
    6·1 answer
  • X-1/6=9/10 pleasssss help
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!