so basically for this problem you're just going to plug in the point (3,-3) into every equation, keeping in mind that the 3 is the x value and that the -3 is the y value. once you plug it in you can just use order of operations (pemdas) to solve.
the equations that do work with the point (3,-3) are (2x+4y=-6)
(2x-3y=15)
(8x+3y=15)
(7x-2y=-24)
Step-by-step explanation:
so to work one of these problems you take (2x+4y=-6) and plug in your variables.
2(3)+4(-3)=-6
then you're going to multiply
6-12=-6
the subtract the negative twelve from the 6
-6=-6
so we get a true statement. if you do this and the two numbers don't match then the equation does not work with your point. I hope this helps!
Answer:
1 hour = 7/18 of the distance between two ports
Step-by-step explanation:
Given that:
In 3/7 hours distance traveled is 1/6
For finding distance in one hour, divide both sides by 7/3 so that 3/7 would be cancelled out:
3/7 * 7/3 hours = 1/6 * 7/3 distance
By simplifying:
1 hour = 7/18 of the distance between two ports
This means that in one hour 7/18 of the distance is covered between two ports.
i hope it will help you!
(8a+b) (a+8b)
Hope this helps
Answer:
h = + 6 ft
Step-by-step explanation:
Here we're dealing with a right triangle and may therefore apply the P, Pythagorean Theorem.
The hypotenuse is 10 ft and the horizontal leg is 8 ft. Thus, if h is the height of the highest point of the slide,
(8 ft)^2 + h^2 = (10 ft)^2, or
64 ft^2 + h^2 = 100 ft^2, leading to h^2 = 36 ft^2.
Then h = + 6 ft