3 years ago

Susie has 8/9 cup of ice cream. How many 1/4 servings can she make

Mathematics

1 answer:

AleksandrR [38]3 years ago

7 0

Answer: 3

Step-by-step explanation:

(32/36) / (9/36) = 3 with a Rest of 5/36

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Determine the unit rate of a marathon runner who travels 9/2 miles in 3/4 hour.

ludmilkaskok [199]

Answer:

The marathon runner runs 1 mile every 10 minutes.

Step-by-step explanation:

9/2 miles is equal to 4.5 miles. 3/4 hours is equal to 45 minutes.

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3 years ago

Please help!! Evaluate the piece wise function at x=-4 and x=4.

hodyreva [135]

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2 years ago

Each week, Stephanie is paid a $180 base salary and a 3% commission on her total sales generated for the week. Which expression

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The expression that represents her weekly income is:
180 + 0.03w

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2 years ago

(x^2-7x)^2+4(x^2-7x)-96 (x 2 −7x) 2 +4(x 2 −7x)−96

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Answer:

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Step-by-step explanation:

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2 years ago

(1 point) A random sample of 600 movie goers in Flagstaff found 252 movie goers who had bought popcorn on their last visit. Find

garik1379 [7]

<u>Answer-</u>

A 95% confidence interval for the true percent of movie goers is 36.41% to 44.25%

<u>Solution-</u>

Given,

n = 600 (sample size)

x = 252 (number of people who bought)

Confidence interval = 95%, so z = 1.96

We know that,

$\mu = M\pm Z(SE)$

where,

M = sample mean

Z = Z statistic determined by confidence level

SE = standard error of mean

Calculating the values,

$M=\frac{x}{n} =\frac{242}{600} =0.4033$

$Z=1.96$ from the tables

$SE=\sqrt{\frac{M\times (1-M)}{n}}$

$\Rightarrow SE=\sqrt{\frac{0.4033\times (1-0.4033)}{600}}=0.02$

Putting all the values in the formula,

$\mu = M\pm Z(SE)$

$\mu = 0.4033\pm 1.96(0.02)$

$=0.4033\pm 0.0392$

$=0.4425, 0.3641$

$= 44.25\%,36.41\%$

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3 years ago