Answer:
1300
Step-by-step explanation:
object A 3.12 x 10^5 = 312000
object B 2.4 x 10^2= 240
312000/240=1300
Object A is 1300 times heavier than Object B
Answer:
The 2 pound bag of gummy bears
Step-by-step explanation:
You do 1.5/4.35 which = 2.9 the 2.9 is $2.90 per pound
Then, you do 5.3/2 which = 2.6 this 2.6 is $2.60 per pound
$2.60 < $2.90 there for the 2 pound bag of gummy bears is the better deal
7.
Direct variation is:
![\sf y=kx](https://tex.z-dn.net/?f=%5Csf%20y%3Dkx)
Where 'k' is the constant of variation. Let's plug in y = -6 and x = 10 into the formula:
![\sf -6=k(10)](https://tex.z-dn.net/?f=%5Csf%20-6%3Dk%2810%29)
Divide 10 to both sides:
![\sf k=-\dfrac{3}{5}](https://tex.z-dn.net/?f=%5Csf%20k%3D-%5Cdfrac%7B3%7D%7B5%7D)
Plug this in for 'k' in our formula:
![\sf y=-\dfrac{3}{5}x](https://tex.z-dn.net/?f=%5Csf%20y%3D-%5Cdfrac%7B3%7D%7B5%7Dx)
This is our formula. To find out what 'y' is when 'x' = 5, plug in 5 for 'x':
![\sf y=-\dfrac{3}{5}(5)](https://tex.z-dn.net/?f=%5Csf%20y%3D-%5Cdfrac%7B3%7D%7B5%7D%285%29)
Multiply:
![\boxed{\sf y=-3}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Csf%20y%3D-3%7D)
9.
Let's plug in y = 9 and x = 8 into our formula:
![\sf 9=k(8)](https://tex.z-dn.net/?f=%5Csf%209%3Dk%288%29)
Divide 8 to both sides:
![\sf k=\dfrac{9}{8}](https://tex.z-dn.net/?f=%5Csf%20k%3D%5Cdfrac%7B9%7D%7B8%7D)
So our equation is:
![\sf y=\dfrac{9}{8}x](https://tex.z-dn.net/?f=%5Csf%20y%3D%5Cdfrac%7B9%7D%7B8%7Dx)
Now let's plug in 18 for 'y' to find out what 'x' is when y = 18:
![\sf 18=\dfrac{9}{8}x](https://tex.z-dn.net/?f=%5Csf%2018%3D%5Cdfrac%7B9%7D%7B8%7Dx)
Divide 9/8 to both sides or multiply by its reciprocal 8/9:
Hi!
Answer - Line R
Well refraction is the bending of something. I choose r because it may have refraction because of the 2 rectangles at the end of both sides.
Hope This Helps!
Answer:
i cant really see what it says but i think its 2- by 4
Step-by-step explanation: