Consumption of fast food is a topic of interest to researchers in the field of nutrition. An article reported that 1880 of those in a random sample of 6765 U.S. children indicated that on a typical day, they ate fast food. Estimate p, the proportion of children in the United States who eat fast food on a typical day. (Round your answer to four decimal places.)
Answers
Answer:
the proportion is 0.2779, that is a 27.79%
Step-by-step explanation:
The article reported that 1880 children ate fast food from a sample of 6765 children. We can use the rule of three to find the proportion of children that ate fast food
- from 6765 we have 1880 children that ate fast food
- from 100 children we have
children that ate fast food
that gives us that a 27.79% of the children ate fast food on a typical day. We can obtain the proportion by dividing the percentage by 100, that gives us a proportion of 27.79/100 = 0.2779.
I hope this helped you!
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Sorry guys today is not my day :( Please show your work
Answers
if 25% was paid, and 80 dollars are left, this means that 80 dollars is 75% of the bill. 25% is a quater, and 75% is three quarters.
here, we can divide 80 into three parts ->
80 ÷ 3 ≈ 26.67
that means a quater of the bill is 26.67 $
if 80$ were left to be paid, just add the 26.67$ from the first quater ->
80 + 26.67 = 106.67 $
Give your answer with the appropriate precision.
a. 6.7 kg
b. 6.65 kg
c. 6.63 kg
d. 6.6 kg
Answers
24.93 - 18.3 = 24.93 - 18.30 = 6.6
answer D
Answers
Answers
Answer:
y^2 +2x^2 y
----------------------
5 xy^2 - 6 x^2
Step-by-step explanation:
1/x^2 +2/y
-------------------
5/x - 6/y^2
Multiply the top and bottom by x^2y^2 to clear the fractions in the numerator and denominator
1/x^2 +2/y x^2y^2
------------------- * ---------------------------
5/x - 6/y^2 x^2y^2
Distribute
1/x^2 * x^2y^2 +2/y *x^2y^2
---------------------------------------------
5/x * x^2y^2 - 6/y^2* x^2y^2
y^2 +2x^2 y
----------------------
5 xy^2 - 6 x^2
Answers
Answer: There will be 3 rows with 3 photos.
Step-by-step explanation:
Since we have given that
Number of photos to be arranged by Amir on a bulletin board = 9
According to question, we have given that each row contains the same number of photos.
Let the number of rows be x
So, the number of photos also be x
So, our equation becomes
So, there will be 3 rows with 3 photos.
Answers
3x²-x+9=0
==>x²-x/3+3=0
p+q=1/3
pq=3
p/q+q/p=[(p+q)²-2pq]/(pq)=[(1/3)²-2*3]/3=[1/9-6]/3=-53/27
also x² - (1/3)x + 3 = 0
p,q are roots so
(x - p)(x - q) = x² - (1/3)x + 3 = 0
x² - (p+q)x + pq = x² - (1/3)x + 3 = 0
compare coefficients we have
p+q = 1/3 ... (1)
pq = 3 ... (2)
(1)/(2) ... (p+q)/pq = (1/3)/3
p/q + q/p = 1/9