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
vovangra [49]
3 years ago
7

PLZ HELP WILL REWARD BRAINLIEST

Mathematics
1 answer:
seraphim [82]3 years ago
4 0
The proportion used is:
x/120 = 9/100
Cross multiply:
100x = 1080
Divide:
x = 10.8
Add:
120 + 10.8 = $130.80

Hope this helps!! :)
You might be interested in
Find the unit rate with the second given unit in the denominator.
Korolek [52]
If 9 pizzas cost $67.50 that means that 1 pizza costs 67.50/9 = $7.5

Answer A is incorrect because of false prize of pizza.

B isn't correct because 1 pizza cost $7,5 and not 7,5 pizzas cost $1

C isn't answer because of both reasons from answer A and answer B

D is the answer because it says that you need to pay $7.5 per pizza.
8 0
3 years ago
. If IQ scores are normally distributed with a mean of 100 and a standard deviation of 5, what is the probability that a person
bulgar [2K]

Answer:

2.28% probability that a person selected at random will have an IQ of 110 or greater

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 = 100, \sigma = 5

What is the probability that a person selected at random will have an IQ of 110 or greater?

This is 1 subtracted by the pvalue of Z when X = 110. So

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

Z = \frac{110 - 100}{5}

Z = 2

Z = 2 has a pvalue of 0.9772

1 - 0.9772 = 0.0228

2.28% probability that a person selected at random will have an IQ of 110 or greater

5 0
3 years ago
A small concert hall was setting up chairs for the next concert. The graph below shows the
Y_Kistochka [10]

I believe it's A, sorry if it's incorrect. ^-^'

4 0
3 years ago
−6 + 2n = 3n − ( 6 + 5 )<br> Please provide the answer along with how you got the answer!
pickupchik [31]

Answer:

5

Step-by-step explanation:

-6+2n=3n-(6+5)

-6+2n=3n-11

-6+2n-3n=-11

-6-n=-11

n=-6-(-11)

n=-6+11

n=5

5 0
2 years ago
Which shows the domain range of these function?
Bas_tet [7]

Answer: domain: (-oo,oo) range: (0,oo)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • What was the original price if after increase by 30% it becomes $520?
    9·1 answer
  • A parking garage charges ​$1.08 for the first hour and ​$0.50 for each additional hour or part of an hour. What is the maximum l
    11·1 answer
  • Simplify by combining like terms: <br>-7x - 2 - 9y + 10x ​
    12·1 answer
  • A bag contains coins consisting of quarters and dimes. The total value of the coins is $285. How many quarters are in the bag?
    14·2 answers
  • Explain how to find the x-intercept of the function y= log5x+7 log 5 ⁡ x + 7 .
    12·1 answer
  • The Burj Khalifa in Dubai is the tallest building in the world, at 2,717 feet. It is 217 feet taller than 5 times the height tha
    8·1 answer
  • I NEED HELP FAST! Find the surface area of the shape below
    9·2 answers
  • Walter is buying strawberries and grapes. • The total amount he spends on the fruit must be less than $14.00. • He spends $5.25
    14·1 answer
  • 13 is 65% of what number?​
    13·1 answer
  • Olivia saves $15 each week and has $20 in an
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!