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raketka [301]
3 years ago
5

3 upon 5 + 2 upon 7 ​

Mathematics
2 answers:
alexira [117]3 years ago
8 0

Answer:

3

Step-by-step explanation:

3/7/7 which is 3/7 x 7 which is 21/7 which is 3

woule be amazing if you marked me brainliest

Sati [7]3 years ago
7 0

Answer:

\frac{3}{5}  +  \frac{2}{7}  =  \frac{31}{35}  = 0.885

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A rectangle with dimensions of 3 units by 7 units is enlarged by a scale factor of 1.1. By what percent does it’s area increase?
Ratling [72]

Answer:

21\%

Step-by-step explanation:

Original dimensions of the rectangle

l=7\ \text{units}

w=3\ \text{units}

Area of the rectangle

A=7\times 3=21\ \text{units}^2

Scale factor = 1.1

New dimensions

l'=7\times 1.1=7.7\ \text{units}

w'=3\times 1.1=3.3\ \text{units}

The new area of the rectangle

A'=7.7\times 3.3=25.41\ \text{units}^2

Percentage change is given by

\dfrac{A'-A}{A}\times 100\\ =\dfrac{25.41-21}{21}\times 100=21\%

The percentage by which the area of the rectangle increases is 21\%.

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3 years ago
Solve the System x/3 + 4y/3=100 & 3x-4y=100
fenix001 [56]
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8 0
4 years ago
If the measure of an angle is 13, find the measure of its supplement
WITCHER [35]

An angle added with it's supplement is 180.

Knowing this: 180 - 13 = 167

It's supplement is 167

8 0
3 years ago
Read 2 more answers
5. Last year, Mr. Petersen's rectangular garden had a width of 5 meters and an area of 20 square meters.
11111nata11111 [884]

Answer:

Last Year Length = 4 meters

This Year Length = 12 meters

This Year Width = 10 meters

Step-by-step explanation:

We know, area of the rectangle is given by the formula:

Area = Length * Width

Given width = 5

Area = 20

We solve for Length:

Area = Length * Width

20 = Length * 5

Length = 20/5 = 4

Last Year Length = 4 meters

Now, this year, the length would be 3 times as long, so new length would be:

This Year Length = 4 * 3 = 12 meters

This year, the width would be two times previous year, so width would be:

This Year Width = 5 * 2 = 10 meters

5 0
3 years ago
Help please!!!!!!!!!!!!
MrRa [10]

Answer:

The answer is 13

Step-by-step explanation:

ABC is equal to GHI, so AB = GH which is 13

4 0
2 years ago
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