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enot [183]
2 years ago
13

How many books can be stacked on top of one another inside a cupboard 1.21 m high on the inside, knowing that the thickness of e

ach book is 12.5 cm.
Mathematics
1 answer:
kvasek [131]2 years ago
4 0

Answer:

10 books approx

Step-by-step explanation:

Step one:

Given data

Hight of cupboard= 1.21m

Thickness of book= 12.5cm

thickness in meters= 12.5/100= 0.125m

Required

The number of books need to fill the Cupboard

Step two:

the number of books can be computed as

= 1.21/0.125

=9.68 book

=10 books approx

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If the regular price of a jacket is $62.00 and the discount rate is 15%, what is the<br> sale price?
uysha [10]

Answer:

52.70

Step-by-step explanation:

62 * 0.15 = 9.300000000000 tvt

62 - 9.30 = 52.70

6 0
2 years ago
a campus contains 175 calories per 2.5 servings which of the following is not an equivalent number of calories per serving
Tcecarenko [31]
I think your answer is  <span>525</span>
7 0
2 years ago
I please need help with this question. Thank you
Diano4ka-milaya [45]

Part (A)

The input variable is the shoe size because it is along the horizontal axis, or x axis. It's not clear what the units for the shoe size are, but it's possible the units are in inches.

The output variable is the y value, which in this case is the height. The units for the height is in inches.

====================================================

Part (B)

We have a positive trend. We determine this visually by noting the regression line, or trend line, is going upward as we move from left to right.

Algebraically, the equation for the trend line has a positive slope, which leads to a positive trend.

A positive trend is where x and y increase together. As shoe size goes up, height goes up as well.

While not all the points are on the line, there is a tendency for the points to go uphill as we move from left to right.

As for the strength of the correlation, that part is subjective. If we knew the correlation coefficient r, then we could be more certain; however, we don't know this value. So instead we have to eyeball the given graph and give an estimate. Based on the graph, I'd say there's a moderate positive correlation going on. It's somewhere in the middle of weak and strong positive correlation because the data points are somewhat scattered randomly, but they trend upward nonetheless.

====================================================

Part (C)

The rate of change is the slope. The slope is the coefficient of the independent variable x. In this problem, the slope is 1.728

So the rate of change is 1.728 inches per shoe size.

In other words, as the shoe size increases by 1 unit (1 inch perhaps?), the height will increase by roughly 1.728 inches.

---------------------------------------------------------

Extra info:

The equation

Height = 51.46 + 1.728(Shoe Size)

is the same as

y = 51.46 + 1.728x

where x is the shoe size and y is the height

We can rearrange that into

y = 1.728x + 51.46

So that it matches with the familiar y = mx+b slope intercept form. This is optional.

3 0
3 years ago
If the measure of angle ACB is 65 degrees, find the measure of angle BCD
jolli1 [7]

Answer:

the answer is 25

Step-by-step explanation:

you take 65 and add 90 to it because there is an angle that is 90 and you should get 115 then you take 115 and subtract it from 180. and you will get 25 and 25 is your answer.

hope this helped!

p.s it would be cool if you gave me brainliest.

6 0
3 years ago
If = 27° and y = 17 cm, what is the value of z to the nearest tenth of a centimeter?
dolphi86 [110]
31.9 cm, your welcome
6 0
3 years ago
Read 2 more answers
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