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
Nookie1986 [14]
3 years ago
6

David ate 1/4 of a chocolate pie and peter ate 2/5.What fraction of the pie still remains?

Mathematics
1 answer:
spin [16.1K]3 years ago
7 0

Answer:

Step-by-step explanation:

Pie eaten by David and Peter = (1/4) + (2/5)

                                                  = \frac{1*5}{4*5}+\frac{2*4}{5*4}\\\\=\frac{5}{20}+\frac{4}{20}\\\\=\frac{9}{20}

Remaining pie = 11/20

You might be interested in
A punch recipe requires 4 L of orange juice and 3 L of pineapple juice. Sylvia wants to tripple the recipe. What is the total am
kirill [66]

Answer:

Sylvia needs 12 l of orange juice and 9 l of pineapple juice.

Step-by-step explanation:

triple means multiplying by 3

so multiply 4 l of orange juice by 3 and 3 l of pineapple juice by 3

3 0
3 years ago
How does the volume of the cylinder compare to the volume of the cone
aniked [119]
A cylinder with the same radius and height as a cone will have 3 times the volume of the cone.

Vcone = (1/3)*π*r^2*h
Vcylinder = π*r^2*h
5 0
3 years ago
What is the answer to 3z−6/7−2z = 1.2/3.2 ? Please help
Brums [2.3K]

Answer:

= 1.23214285

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Suppose that birth weights are normally distributed with a mean of 3466 grams and a standard deviation of 546 grams. Babies weig
Anon25 [30]

Answer:

3.84% probability that it has a low birth weight

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 = 3466, \sigma = 546

If we randomly select a baby, what is the probability that it has a low birth weight?

This is the pvalue of Z when X = 2500. So

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

Z = \frac{2500 - 3466}{546}

Z = -1.77

Z = -1.77 has a pvalue of 0.0384

3.84% probability that it has a low birth weight

3 0
3 years ago
A manufacturer of pickup trucks is required to recall all the trucks manufactured in a given year for the repair of possible def
Crank

Answer: 2%

Step-by-step explanation:

Let A be the event of having defective steering and B be the vent of having defective brake linings.

Given: P(A)  = 0.03  P(B) = 0.05

P(neither A nor B ) = 0.94

Using formula: P(either A nor B) = 1- P(neither A nor B )

= 1-0.94

i.e.  P(either A nor B) =0.06

Using formula:P(A and B) = P(A)+P(B)-P(either A or B)

P(A and B) =0.03+0.05-0.06

= 0.02

Hence, the percentage of the trucks have both defects = 2%

8 0
3 years ago
Other questions:
  • WILL GIVE BRAINLIEST!! HELP QUICKLY!! If m∠FEG = 50°, what is the measure of ∠FHG?
    9·2 answers
  • In the square pyramid below, a = 12 ft and b = 10 ft.
    14·2 answers
  • you organize a garage sale. you have $30 at the beginning kf the sale . you earn an average of $20 per hour . write an equation
    5·2 answers
  • Where do you you plot -1.5,0 on a coordinate plane
    5·1 answer
  • Please help me wit dis part #2!!!
    12·1 answer
  • Round the following problems to the nearest ten.
    5·2 answers
  • i need help what is ten pounds of rice are split equally into 6 bags to give out at the food bank how many pounds of rice are in
    9·1 answer
  • Find the difference quotient for f(x) = x2 + 4.
    6·1 answer
  • Model with mathematics. Hamid has read 60 pages of the book
    8·1 answer
  • Write an equation of the line in slope-intercept form.<br> (0.2)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!