Answer: y=-3 x=7
Step-by-step explanation:
2y-3x=-27.............(1)
5y+3x=6.................(11)
Add (1) and (11)
2y+5y-3x+3x=-27+6
7y=-21
Divide both sides by 7
7y/7=-21/7
y=-3
Substitute y=-3 in 5y+3x=6
5(-3)+3x=6
-15+3x=6
3x=6+15
3x=21
Divide both sides by 3
3x/3=21/3
x=7
The answer to that would be 15 13/30. You have to change the denominators, as well as the numerators, to fit both fractions. I did 10 * 3 = 30 & 15 * 2 = 30. That resulted in me getting 3 * 3 = 9 + 2 * 2 = 4, which equals 13.
I hope this answer helped you! If you have any further questions or concerns, feel free to ask! :)
Answer:
<h2>Y = 22.56 cm </h2>
Step-by-step explanation:
To find the diameter Y of the circle we must first find the radius of the circle
Area of a circle = πr²
where
r is the radius
From the question
Area = 400cm²
Substitute the value into the above formula and solve for the radius
That's
400 = πr²
Divide both sides by π
We have

Find the square root of both sides

radius = 11.28 cm
Since we have the radius we can use it to find the diameter Y using the formula
diameter = radius × 2
radius = 11.28
Y = 11. 28 × 2
We have the final answer as
<h3>Y = 22.56 cm</h3>
Hope this helps you