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Stells [14]
3 years ago
11

Ok what is 4 1/8 - 3/4

Mathematics
2 answers:
Scrat [10]3 years ago
8 0
The correct answer is 3 3/8
12345 [234]3 years ago
4 0
In order to do this, We need common denomonators. 

What is something that we can times 4 by to equal 8.We can times 4 by 2 to get 8. What is done to the bottom must be done to the top, meaning you will have to times 3 by 2 as well to get 6/8. Your problem will now look like:

4 1/8 - 6/8

This means that your answer will be:

Mixed Fraction: 3 3/8
or
Improper Fraction: 27/8

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What are the volume formulas for the listed shapes: Cylinder, Cone and Sphere.
sesenic [268]
Cylinder: V = \pi  r^{2} h

Cone: V = \pi  r^{2} h /3

Sphere: V = 4 \pi  r^{3} /3
8 0
2 years ago
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The base of a prism is a right triangle with a base and height measurement of 12cm and a 5cm. If the volume of the prism is 210c
bezimeni [28]

Answer:

The height is 7 cm

Step-by-step explanation:

210 × 2 = 420

12 × 5 = 60

420 ÷ 60 = 7

6 0
3 years ago
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Here is a rectangle ABCD.
lana66690 [7]

Answer:

32%

Step-by-step explanation:

Area of rectangle ABCD = 20 * 30 = 600 Sq cm

After increasing the length and width of the rectangle by 20% and 10% respectively.

New length = 30 + 20% of 30 = 30 + 6 = 36 cm

New width = 20 + 10% of 20 = 20 + 2 = 22 cm

Area of new rectangle = 36*22 = 792 Sq cm

Increase in area = 792 - 600 = 192 Sq cm

Percentage increase in area

= (192/600) *100

= 32%

5 0
3 years ago
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Kathi's order at the diner cost $12.75. She had<br> to pay 6% tax on the bill. How much is her tax?
Talja [164]

\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{6\% of 12.75}}{\left( \cfrac{6}{100} \right)12.75}\implies 0.765~~\approx 0.77~~\textit{about 77 cents}

3 0
2 years ago
A coin is flipped 150 times. The results of the experiment are shown in the following table:
MakcuM [25]
First problem:

The answer is C because theoretically it should have a 50% of landing heads but instead it lands heads 56% of the time. Thus this is 6% higher than 50%. It's not D because there is not specified detail of how the person got this data so you can assume that the person did a fair survey/data collection.

Second problem:

So in a data size of 490, 140 of them we trout. This means that 140/490 or 28.57% of the fish are trout. This means that in a sample size of 5000 fish, 5000*0.2857 or 1428.57 are trout.

Third problem:

The Science students seem to have a higher average score because the average score of Math students are:
(32+33+34+34+35+37+39+40+40)/9=36
average score of Science students are:
(41+42+43+43+46+46+47+49+49)/9=45.111
7 0
3 years ago
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