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3 years ago

A building has 40 apartments on 5 floors what is the unit rate?

Mathematics

2 answers:

Ksenya-84 [330]3 years ago

6 0

8 is the answer bc you would decide 40 by 5

Anna71 [15]3 years ago

5 0

Answer:

8 is the right answer

Step-by-step explanation:

because 40 devided by 5 is 8

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Find the slope of the line.<br> Give brainiest if correct

Allisa [31]

Answer:

$m=-2$

Step-by-step explanation:

$\left(x_1,\:y_1\right)=\left(0,\:2\right),\:\left(x_2,\:y_2\right)=\left(2,\:-2\right)$

7 0

3 years ago

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The question is<br> Simplify the Expression. I don't know what they mean<br> 14 - 16 / 8 + 32 x 5

xeze [42]

$\sf 14 - \frac{16}{8} + (32) (5) \\ \\ 14 - 2 + (32)(5) \\ \\ 12 + (32) (5) \\ \\ 12 + 160 \\ \\ 172.$

Using PEMDAS is the best.

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3 years ago

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alaina owes her mom $15 and her friend $27. then she babysat and earned $35. how much more money does alaina need to earn in ord

tino4ka555 [31]

35 - 27 = 8

15 - 8 = 7

She just payed off her best friend and has $8 left.

So she needs to earn $7 more to pay off the $15 she owes her mom

4 0

3 years ago

The cost for a pack of 8 padlocks is 19.20. Find the unit price in dollars per padlock. if necessary, round your answer to the n

muminat

19.2 / 8 = 2.4
$2.40 is your answer

5 0

3 years ago

In a study relating the degree of warping, in mm, of a copper plate (y) to temperature in °C (x), the following summary statisti

elena-14-01-66 [18.8K]

Answer:

y = 0.3035 + 0.0082x

0.6315 mm

x = 23.9634 °C

Step-by-step explanation:

a. Compute the least-squares line for predicting warping from temperature. Round the answers to four decimal places.

We need to find an equation of the form

y = b + mx

where m is the slope and b the Y-intercept.

The slope m can be computed with the formula

$\bf m=\displaystyle\frac{\displaystyle\sum_{i=1}^n(x_i-\bar x)(y_i-\bar y)}{\displaystyle\sum_{i=1}^n(x_i-\bar x)^2}$

Replacing the values in our formula (we will round at the end of the calculations)

$\bf m=\displaystyle\frac{806.94}{98,775}=0.008169476$

the Y-intercept b is computed with the formula

$\bf b=\bar y-m\bar x$

therefore we have

$\bf b=0.5188-0.008169476*26.36=0.303452613$

and the least-squares line rounded to 4 decimals would be

y = 0.3035 + 0.0082x

b. Predict the warping at a temperature of 40°C. Round the answer to three decimal places.

We simply replace x with 40 to get

y = 0.3035 + 0.0082*40 = 0.6315 mm

c. At what temperature will we predict the warping to be 0.5 mm? Round the answer to two decimal places

Here, we replace y with 0.5 and solve for x

0.5 = 0.3035 + 0.0082x ===> x = (0.5-0.3035)/0.0082 ===>

x = 23.9634 °C

6 0

4 years ago