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raketka [301]
3 years ago
12

Use elimination method to solve the silmutaneous equations 2x +3y=1 3x=2y+8 (4marks)

Mathematics
1 answer:
kotegsom [21]3 years ago
6 0

Answer:

2x +3y=1⇒equation 1

3x=2y+8

3x-2y=8⇒equation 2

by elimination method,

2x+3y=1 ×2

3x-2y=8 ×3

4x+6y=2

9x-6y=24

cut 6y and -6y

4x+6y=2

9x-6y=24

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

13x+0=26

13x=26

x=26/13

x=2

substitute x=2 in equation 1

2(2)+3y=1

4+3y=1

3y=1-4

3y=-3

y=-3/3

y=-1

therefore, x=2 and y=-1

hope it helps u!

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742 hard boiled egg into cartons for a community farm fundraiser. Each carton holds 12 eggs.
ch4aika [34]

Answer:

I am assuming you want to know how many total cartons will be used which is about 61 cartons with a remainder of 10 eggs.

Step-by-step explanation:

To solve for this problem we have to divide 742 by 12:

742/12 = 61.833333...

This means that the "whole" number of cartons will be 61

If you want to find the remaining eggs not in decimal form, you have to mulitlpy 12 by 61 and take this number away from 742 to find the remainder:

**Note: 12 * 61 can also be written as 61 * 12

12 * 61 = 732 → 742 - 732 = 10 eggs


I hope this helps!

8 0
3 years ago
Find the median of the following<br> data set.<br> 14,24,35,37,43,35,45,24,29,41,45,<br> 37,19,45,44
Mariulka [41]

Answer:

37,43,35 should be the answer to your game

8 0
2 years ago
Read 2 more answers
What is the answer to 0.7(1.5 + y) = 3.5y - 1.47
Brums [2.3K]

Answer:

0.9

Step-by-step explanation:

0.7*(1.5 + y) = 3.5y - 1.47

or, (0.7*1.5) + 0.7y = 3.5y - 1.47

or, 1.05 + 1.47 = 3.5y - 0.7y

or, 2.52 = 2.8y

or, y = 2.52/2.8

or, y = 0.9

Hope this will help. Please mark me brainliest.

4 0
2 years ago
What is the general form of the equation of a circle with its center at (-2,1) and passing through (-4,1)
cricket20 [7]

Answer:

(x + 2)^2 + (y - 1)^2 = 2^2

Step-by-step explanation:

The equation of this circle is

(x + 2)^2 + (y - 1)^2 = r^2, and we are to determine the values of r^2 and r by substituting -4 for x and 1 for y:

(-4 + 2)^2 + (1 - 1)^2 = r^2, or:

(-2)^2                        =  r^2, or

4 = r^2

Then r = 2.

The desired equation is:

(x + 2)^2 + (y - 1)^2 = 2^2

7 0
3 years ago
Which is a perfect square?<br>6^1<br>6^2<br>6^3<br>6^4<br>​
k0ka [10]

Should be 6^3.

Have a good day!

7 0
2 years ago
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