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
Oliga [24]
3 years ago
11

A company logo is a red parallelogram. A large version of the logo is painted on a rectangular billboard that has a base of 10 f

eet and a height of 6 feet. The logo has a base of 7 feet and a height of 4 feet. The rest of the billboard is blue. What percentage of the billboard’s area is red?
help
Mathematics
2 answers:
irakobra [83]3 years ago
8 0

the percentage = area(parallelogram)/area(rectangle).100

so

percent = (4.7)/(6.10).100 = 140/3= 46.6

asambeis [7]3 years ago
3 0

Answer:

Step-by-step explanation

  • number           Unit                   Description
  • 10                     Feet                  base of billboard
  • 6                       Feet                  height of billboard
  • 4                       Feet                  height of logo
  • 7                       Feet                   base of logo
  • unknown         percentage      percentage of area that is red

why is write an equation a good strategy for solving this problem= An equation can be used to calculate the unkown value from givin information

Choose the sentence that describes how the quantities in the problem are related =The percentage of the total area that is red is 100 times the ratio of the logos area to the entire billboards area.

Use the button below to build an equation with words and symbols =  base of logo x height of logo/base of billboard x height of billboard

select the best explanation of solution = The percentage of the billboard that is red is 46.67%

Which statement best explains why your solution is reasonable = The logos area is 28 sq ft and the billboards area is 60 sq ft. 28 is a little less than half of 60. 46.67%is a little less than half or 50% so its reasonable.

which statement best explains why write an equation was an effective strategy for solving this problem =  My equation showed how the unkown can be calculated from the numbers in the problem.

Hope This HELPS!!!!

You might be interested in
John’s mathematics teacher drew a triangle that had a 70° angle and a 20° angle. What is the measure of the third angle in the t
kari74 [83]
All triangles interior angles equal 180
So these 3 angles = 180
7 0
3 years ago
A self proclaimed psychic was tested for ESP. The psychic was presented with 200 cards face down and asked to determine if the c
swat32

Answer:

The 95% confidence interval would be given (0.172;0.288).  

We are confident at 95% that the true probability that the psychic correctly identifies the symbol on the card in a random trial is between (0.172;0.288).  

We can conclude that her random guessing would have got her correct 20% of the time. Since the confidence interval contains 0.2, she has no psychic powers, rather she just guessed it like normal people. Any person could have got it correct this many times.

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

Description in words of the parameter p

p represent the probability that the psychic correctly identifies the symbol on the card in a random trial

\hat p represent the estimated probability that the psychic correctly identifies the symbol on the card in a random trial

n=200 is the sample size required  

z_{\alpha/2} represent the critical value for the margin of error  

The population proportion have the following distribution  

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Numerical estimate for p

In order to estimate a proportion we use this formula:

\hat p =\frac{X}{n} where X represent the cases successful

\hat p=\frac{46}{200}=0.23 represent the estimated probability that the psychic correctly identifies the symbol on the card in a random trial

Confidence interval

The confidence interval for a proportion is given by this formula:

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}  

For the 95% confidence interval the value of \alpha=1-0.95=0.05 and \alpha/2=0.025, with that value we can find the quantile required for the interval in the normal standard distribution.  

z_{\alpha/2}=1.96  

And replacing into the confidence interval formula we got:  

0.23 - 1.96 \sqrt{\frac{0.23(1-0.23)}{200}}=0.172  

0.23 + 1.96 \sqrt{\frac{0.23(1-0.23)}{200}}=0.288  

And the 95% confidence interval would be given (0.172;0.288).

We are confident at 95% that the true probability that the psychic correctly identifies the symbol on the card in a random trial is between (0.172;0.288).  

We can conclude that her random guessing would have got her correct 20% of the time. Since the confidence interval contains 0.2, she has no psychic powers, rather she just guessed it like normal people. Any person could have got it correct this many times.

6 0
3 years ago
Pls answer fast IMPORTANT HURRY!!!! Why did the chicken cross the road
erma4kov [3.2K]

Answer:

To get to the other side :o

Step-by-step explanation:

So first the chicken walks across the road and then gets to the other side mark brainliest please :)

5 0
3 years ago
Read 2 more answers
M : _____ <br> b : _____<br> Equation : ______ <br><br> PLEASE HELP ME !!!
fredd [130]

Answer:are you saying mx+b

Step-by-step explanation: hopefully that helps you mark me brainlest please

and like

6 0
3 years ago
For the equation y+1=-3(x-5) the line contains the point (5,-1) and has a slope of?
Tems11 [23]

Answer:

-3

Step-by-step explanation:

complete operations and rearrange to y = mx + b format

y + 1 = -3(x-5)

y + 1 = -3x + 15

y = -3x + 14

slope is -3

5 0
3 years ago
Other questions:
  • The velocity of an object must include both a ______ and a ______
    12·1 answer
  • Easy Algebra Question! Solve for x <img src="https://tex.z-dn.net/?f=b%2B3%2Fx%3Df%2F2" id="TexFormula1" title="b+3/x=f/2" alt="
    11·1 answer
  • Solve <img src="https://tex.z-dn.net/?f=a%5E%7B3%7D" id="TexFormula1" title="a^{3}" alt="a^{3}" align="absmiddle" class="latex-f
    6·2 answers
  • What are the first four terms in the sequence defined by f(x)=6x-25?
    7·1 answer
  • Help me please and thank you
    9·1 answer
  • SERIOUSLY GUYS HELP!!!!!!
    6·2 answers
  • A truck driver averages 60 miles per hour while delivering freight to a customer. On the
    9·2 answers
  • Sorry for asking alot i just need to get 10 out of 10
    5·1 answer
  • A shipment contains 9 igneous, 7 sedimentary, and 7 metamorphic rocks. If 7 rocks are selected at random, find the probability t
    13·1 answer
  • (I WILL GIVE BRAINLIEST) PLEASE HELP!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!