3.2x10^12 and it’s science, not math science
Answer:
child's is $14
adult is $23
Step-by-step explanation:
3c + 1a = 65
3c + 3a = 111
a = 65-3c
3c + 3(65-3c) = 111
3c + 195 -9c = 111
-6c = -84
c = 14
3(14) + a = 65
42 + a = 65
a = 23
Answer:
(3,1)
Step-by-step explanation:
5x + 3y = 18
2x + 3y = 9
So we can use elimination here to solve this system of equations by multiplying the second equation by -1
Now we have:
5x + 3y = 18
-2x - 3y = -9
Now we add straight down and combine like terms
The y terms cancel and we are left with 3x = 9, dividing both side by 3 we get x = 3
Now we can plug this x value into one of the original equations to solve for our y value
I will use the first equation: 5(3) + 3y = 18 → condensing the terms we get 15 + 3y = 18 → subtracting the 15 from both sides we get 3y = 3 → dividing both sides by 3 we get y = 1
The solution to this system of equations is (3, 1)
This is easier to understand with a picture...
We know that a triangle has 3 sides right?
Well, if the perimeter is 39 and there are 3 sides you would divide 39 by the 3 sides
39/3=13
Therefore, one side of the triangle would equal 13
Answer:
7/8 and 14/16
Step-by-step explanation: for the first one just divide by 8 for the second one divide by 4