Mist ate 2 slices of cake. Flout ate 1 slice. If Mist ate 2/4 of the cake and all the slices were the same size, what fraction of the cake remained after Mist and Flout had eaten?
Answers
2/4 - mist + 1/4 -flout = 3/4
4/4 - 3/4 = 1/4
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Jaxson bought snacks for his team's practice. He bought a bag of oranges for $2.91and a 24-pack of juice bottles. The total cost before tax was $39.39. Write and solve an equation which can be used to determine x, how much each bottle of juice costs?
Find (f o g)(2) and (f+g)(2) when f(x)=1/x and g(x)=4x+9
Find the quotient: –10/19÷(−5/7)
No fast food 2310 2295 2280 2340 2235 2265 2315 2291.429 34.8466
food Fast 2579 2160 2165 2580 2558 2591 2614 2518 2583.125 33.0646
Give a 95% confidence interval for the difference of the two means, (Uf - Un), where is the mean calorie intake for teens who typically eat fast food and is that for teens who do not typically eat fast food assuming two normal populations, independent random samples, and equal variances for the two populations
Answers
Answer:
Step-by-step explanation:
For "no fast food,
n1 = 9
Mean = (2310 + 2295 + 2280 + 2340 + 2235 + 2265 + 2315 + 2291.429 + 34.8466)/9
Mean, m1 = 2041
Standard deviation, s1 = √summation(x - u)²/n
summation(x - u)² =
(2310 - 2041)^2 + (2295 - 2041)^2 + (2280 - 2041)^2 + (2340 - 2041)^2 + (2235 - 2041)^2 + (2265 - 2041)^2 + (2315 - 2041)^2 + (2291.429 - 2041)^2 + (34.8466 - 2041)^2
= 4533653.14837256
s = √4533653.14837256/9
s = 709.75
For " fast food",
n2 = 10
Mean = (2579 + 2160 + 2165 + 2580 + 2558 + 2591 + 2614 + 2518 2583.125 + 33.0646)/10
Mean,m2 = 2238
summation(x - u)² =
(2579 - 2238)^2 + (2160 - 2238)^2 + (2165 - 2238)^2 + (2580 - 2238)^2 + (2558 - 2238)^2 + (2591 - 2238)^2 + (2614 - 2238)^2 + (2518 - 2238)^2 + (2583.125 - 2238)^2 + (33.0646 - 2238)^2
= 5672294.38379816
s2 = √5672294.38379816/10
s2 = 753.15
For a confidence interval of 95%, z = 1.96
The formula for confidence interval is
m1 - m2 ± z × √(s1²/n1 + s2²/n2)
= 2041 - 2238 ± 1.96 × √(709.75²/9 + 753.15²/10)
= - 197 ± 1.96 × √(55971.6736 + 56723.4923)
= - 197 ± 1.96 × 335.7
= - 197 ± 657.972
The lower end of the interval is
- 197 - 657.972 = - 854.972
The upper end of the interval is
- 197 + 657.972 = 460.972
Answers
Answer:
(0,0) and (1,4)
Step-by-step explanation:
you want to have the same slope as
y=4,which is 4.
so(4-0)/(1-0)=4/1=4
The others do not have the same slope.
Answers
Answer:
10 point separation.
Step-by-step explanation:
There are 14 points for gold and 4 points for fifth place.
Hope this helps!
Answer:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Step-by-step explanation:
26.67
Answers
Answer:35652846437467
Step-by-step explanation:simple math
Step-by-step explanation:
1.23
hdhdjdjdhdhdhjdjdjdjd
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Answers
Answer:
Jill
Step-by-step explanation:
Spanish:
Necesitamos asegurarnos de que ambas fracciones tengan el mismo denominador para descubrir quién se comió la porción más grande.
- Jill comió
de la pizza, Zach comió
de la pizza, y María comió
de la pizza
- Podemos manipular estas fracciones para que ambas tengan el mismo denominador de 12.
- Para hacerlo, podemos multiplicar la porción de Jill por
lo que haría su porción
y la porción de María por
la cual haría su porción
Ahora podemos comparar las tres fracciones y ver cuál tiene el numerador más grande
- Comparando
, podemos ver que 8 > 6 > 3, lo que significa que Jill comió más pizza
English:
We need to make sure both fractions have the same denominator to figure out who ate the bigger portion.
- Jill ate
- We can manipulate these fractions so they all have the same denominator of 12.
- To do so, we can multiply Jill's portion by
Now we can compare the three fractions and see which one has the larger numerator
- Comparing