2.64 ÷ 0.8 1. Use estimation to find an approximate answer for this division problem.
2. Solve the problem using the standard algorithm.
3. Use multiplication to check your answer.

1. 1.5 ÷ 1.2

2. 3.42 ÷ 0.6

3. 11.77 ÷ 1.1

4. 18.16 ÷ 0.4

5. 140.21 ÷ 1.4

6. Rafael Is going on a trip to the beach with his family. The price of a hotel room is $120.85 per night. The family is sharing one room. The total bill before taxes is $483.40. How many nights are Rafael and his family staying in the hotel?

7. Cornflakes cereal with strawberries and blueberries in a white bowl isolated over white The serving size on Marcia's favorite cereal box is 5.4 ounces. The total amount of cereal in the box is 56.7 ounces. How many servings are in the box of cereal?

i just took the test, the correct answer is .. 31.5 in.

i dont have an answer

step-by-step explanation:

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb