answer.
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
aniked [119]
1 year ago
11

Diana sold 336 muffins at the bake sale.Bob sold 287 muffins.Bob estimates that he sold 50 fewer muffins than Diana.how did he e

stimate? Explain.
Mathematics
2 answers:
Jet001 [13]1 year ago
7 0
He rounded 336 to 340 and 287 to 290. Then he subtracted 290 from 340, that's how he got 50.
malfutka [58]1 year ago
3 0

Step-by-step explanation:

Since we have given that

Number of muffins Diana sold at the bake sale = 336

Number of muffins Bob sold at the bake sale = 287

Now, here we are using the method of estimation i.e. rounding the integers to nearest ones.

By estimation, we get

Number of muffins Diana sold at the bake sale = 340

Number of muffins Bob sold at the bake sale = 290

So,

Difference between them is given by

340-290\\=50

Hence, Bob sold 50 fewer muffins than Diana.

You might be interested in
Find the area of the shape shown below.
Liula [17]

Answer:

31.5

Step-by-step explanation:

We can add the areas together

We have a rectangle and a triangle

The area of the rectangle is

A = lw

   = 7*3

   = 21

The area of the triangle is

A = 1/2 bh

   = 1/2 (7)*3

   = 21/2

   = 10.5

Add them together

A = 21 + 10.5

   =31.5

3 0
2 years ago
Read 2 more answers
While remodeling her kitchen Angela is repainting. She estimates that she paints 55 square feet every half-hour. How many square
madreJ [45]
110 square feet. 55x2=100
5 0
1 year ago
g In a survey of 500 residents, 300 were opposed to the use of the photo-cop for issuing traffic tickets.The standard error of t
Evgesh-ka [11]

Answer:

Z-score 1.96

Margin of error d= 0.04323

Step-by-step explanation:

Hello!

The study variable in this case is

X: Number of people that oppose the use of photo-cop for issuing traffic tickets in a sample of 500.

n= 500

The parameter of interest is the proportion of people that opposes it.

The estimated proportion is p'= 300/500= 0.6

To estimate the population proportion per Confidence interval you have to approximate the distribution of the sample proportion p' to normal:

p'≈N(p;p(1-p)1/n)

The mean of this distribution is p and the variance is p*(1-p)*1/n

To construct the Confidence interval, since the value of the population proportion is unknown, an estimated variance is used:

p'(1-p')*1/n ⇒ then the estimated standard error is √(p'(1-p')*1/n)

The formula for the confidence interval is:

p' ± Z_{1-\alpha /2} * \sqrt{\frac{p'(1-p')}{n} }

Where "Z_{1-\alpha /2} * \sqrt{\frac{p'(1-p')}{n} }" represents the margin of error of the interval.

Now for a confidence level of 0.95 the value of Z is Z_{0.975}= 1.965

The estimated standard error is already calculated: \sqrt{\frac{p'(1-p')}{n} } = 0.022

The margin of error (d) is then:

d= Z_{1-\alpha /2} * \sqrt{\frac{p'(1-p')}{n} }= 1.965 * 0.022

d= 0.04323

I hope it helps!

7 0
1 year ago
Please Please Help Ne In This Math homework?!?!?!
weeeeeb [17]
6 is yes because they have the same angles and lengths while 7 is no because the angles are not the same
8 0
1 year ago
a polynomial has been factored below, but some constants are missing. 2x^3-2x^2-24x=ax(x+b)(x+c) what are the missing values of
otez555 [7]
Hello here is a soluion : 

6 0
1 year ago
Read 2 more answers
Other questions:
  • the mean length of 7 books is 258 pages . the longest book has 294 pages. what is the mean length of the other 6 books
    7·1 answer
  • A new crew of painters can paint a small apartment in 12 hours.  An experienced crew can paint the small apartment in 6 hours. 
    15·1 answer
  • You and three friends own a paint shop. The shop's profit was $536 in the first month. You always divide the profits equally. In
    10·1 answer
  • Which expression is equivalent to (4p^-4q)^-2/10pq^-3? Assume p and q do not equal 0. A. 25p^10/4q^8 B. 2q/5p^5 C. p^7q/160 D. 1
    12·2 answers
  • The answer for Mixed Degree Systems 
    5·2 answers
  • The price of a share of one stock fell from $8.75 to $8.54. Find the percent decrease. Round your answer to the nearest tenth of
    7·2 answers
  • Two movie tickets and 3 snacks are $24. Three movies tickets and 4 snacks are $35. How much is a movie ticket and how much is a
    12·1 answer
  • Quiz 3
    10·1 answer
  • a dance club spent $922 on 40 items.The item include some hats and pairs of shoes.Each hat cost $19 and each pair of shoes cost
    9·1 answer
  • For a luxury doughnut producer the average selling price is £2. The average variable cost is 40% of the selling price and its fi
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!