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3 years ago

Use two unit multipliers to convert 10,000 feet to centimeters

1 answer:

7 0

   (10,000 feet) x (12 inches / 1 foot) x (2.54 cm / 1 inch)

   = (10,000 x 12 x 2.54) / (1 x 1) feet - inches - cm / foot - inch

   = 304,800 centimeters

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3 1/3 divided by 2/3 pls help me!!!! im stuck and pls show your work!

Vedmedyk [2.9K]

The answer would be 2 1/3 or 2.3 repeating or 7/3

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3 years ago

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Write the decimal number that has the specified place values.

Delicious77 [7]

Answer:

253.90

Step-by-step explanation:

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3 years ago

(100 points) Give a step by step explanation on how you solved this problem

Lina20 [59]

Use substitution
Given both y values, you know that they have to be equal

3x + 3 = x - 1
2x + 3 = -1
2x = -4, divide by 2
x = -2
Now plug x value into any of the equation to find y value
y = 3(-2) + 3
y = -6 + 3, y = -3

Solution: x = -2, y = -3

4 0

3 years ago

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An educational psychologist wishes to know the mean number of words a third grader can read per minute. She wants to make an est

MrRa [10]

Answer:

85% level of the confidence interval is

(26.337, 26.662)

Step-by-step explanation:

Explanation:-

Given the size of the sample 'n' = 295

Mean of the sample x⁻ = 26.5

The Standard deviation of the Population = 2.7

85% level of the confidence interval is determined by

$(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })$

Critical value Z₀.₁₅ = 1.036

85% level of the confidence interval is determined by

$(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })$

$(26.9 -1.036 \frac{2.7}{\sqrt{295} } , 26.5 + 1.036 \frac{2.7}{\sqrt{295} })$

( 26.5 - 0.1628 , 26.5+0.1628)

(26.3372,26.6628)

7 0

3 years ago

Christi earns $21 per hour working as a receptionist. If she works 19 hours per week, what is her weekly wage? A) $250 B) $299 C

Vikentia [17]

Since Christi earns $21 per hour, to find how much she earns by working 19 hours per week we need to multiply the hourly wage by the number of hours she works in a week:

$21\times19=399$

Her weekly wage is $399

Answer: D) $399

7 0

1 year ago