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andrey2020 [161]
4 years ago
12

All questions are about this system of equations:

Mathematics
1 answer:
Amiraneli [1.4K]4 years ago
8 0
5x + 18y = 23
x + 3y = 2 .....multiply by -5
----------------
5x + 18y = 23
-5x - 15y = -10 (result of multiplying by -5)
----------------add
3y = 13 <=== the resulting equation

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Fencing How much fencing is required to enclose a circular garden whose radius is 28 ​m? Use 3.14 for . About nothing m of fenci
Andru [333]

Answer:

175.84 m

Step-by-step explanation:

Given that:

A circular garden which has a radius of 28 m.

\pi = 3.14

To find:

The fencing required to enclose the circular garden ?

Solution:

Here, we are given a circle and its radius.

We are required to find the perimeter of the circle in order to find the fencing required to enclose the circular garden..

Formula for finding the perimeter of a circle is:

Perimeter = 2\pi r

where r is the radius of the circle.

Using the given values in the formula:

Perimeter = 2\times 3.14 \times 28 = <em>175.84 m</em>

Therefore, 175.84 m of fencing is required.

8 0
3 years ago
HELP ASAP NO ROCKY PLEASE​
bixtya [17]

m<1 is 50

m<2 is 130

m<3 is 50

m<4 is 130

m<5 is 40

m<6 is 140

m<7 is 90

m<8 is 140

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7 0
3 years ago
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vazorg [7]
I think right scalene
5 0
3 years ago
The Terrific Tostada is a popular restaurant for churros and fried ice cream desserts. Last week, 1,125 diners ordered churros o
ANEK [815]

Answer:

900

Step-by-step explanation:

4F + F =1125

5F = 1125

F=225

C=4F

C=4(225)=900

900 + 225=1125

6 0
3 years ago
Suppose y varies directly with x. Write a direct variation equation that relates x and y. Then find the value of y when x=12. y=
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Y = 20x + 7 for instance
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