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3 years ago

14

A piece-wage earner collected the following weights of coffee beans each day over a week:13.3kg,10.8kg,14.4kg and 12,9kg.if she

is paid at K5.80 per kilogram, estimate his earning for the week .note do not round off the rate payment

1 answer:

Katen [24]3 years ago

3 0

Answer:

14.4 should be around 14kg

12,9kg should be rounded to 12

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Consider the enlargement of a triangle that has a scale factor of 7.5.

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Answer:

Step-by-step explanation:

The answer is 281.25 ur welcome. ;)

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4 years ago

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Suppose taxi fare from Logan Airport to downtown Boston is known to be normally distributed with a standard deviation of $2.50.

Mariulka [41]

Answer:

95% Confidence interval for taxi fare: ($20.5,$24.2)

Step-by-step explanation:

We are given the following data set: for fares:

$22.10, $23.25, $21.35, $24.50, $21.90, $20.75, and $22.65

Formula:

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{156.5}{7} = 22.35$

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Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

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3 years ago

Use the diagram and given information to answer the questions and prove the statement.

Greeley [361]

Answer:

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Step-by-step explanation:

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3 years ago

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The three sides of a triangle are n, 3n+3, and 2n+11. If the perimeter of the triangle is 50 inches, what is the length of each

mylen [45]

Answer:

6, 21, and 23 inches

Step-by-step explanation:

The perimeter of a triangle is equal to the sum of all side lengths in that triangle. We're given the perimeter as 50 inches, and the side lengths as n, 3n + 3, and 2n + 11.

This means that we can algebraically solve the equation $n + 3n + 3 + 2n + 11 = 50$

Step 1: Combine like terms.

$(n+3n+2n) + (3+11) = 50$
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Step 2: Subtract 14 from both sides.

$6n + 14 - 14 = 50 - 14$
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Step 3: Divide both sides by 6.

$6n/6 = 36/6$
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Step 4: Plug in the value of n as 6 in each side.

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Therefore, the side lengths are 6, 21, and 23 inches.

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