Answer:
They both have paper
Step-by-step explanation:
Crayons have paper wrapped around them and a newspaper is made of paper. & they both can be recycled
1st question : 16,22. 14,20. 12,18
Answer:
There were 3 cars and 9 buses used for the field trip.
Step-by-step explanation:
Let the number of cars be x
and Number of buses be y.
Total number of vehicles used = 9
Hence,

Also
Each Car carries students = 4
Each Bus carries students = 35
Total Students = 222
Hence,

Now multiplying equation 1 by 4 we get;

Now Subtracting equation 3 from equation 2 we get;
-(4x+4y) =222-36\\4x+35y-4x-4y=186\\31y = 186\\y = \frac{186}{31} = 6](https://tex.z-dn.net/?f=4%28x%2By%29%3D%204%5Ctimes%209%20%5C%5C%5Btex%5D%284x%2B35y%29-%284x%2B4y%29%20%3D222-36%5C%5C4x%2B35y-4x-4y%3D186%5C%5C31y%20%3D%20186%5C%5Cy%20%3D%20%5Cfrac%7B186%7D%7B31%7D%20%3D%206)
Now y = 6
∴ x + y = 9 (Given)
x + 6 = 9
x = 9 - 6
x = 3
Hence, There were 3 cars and 9 buses used for the field trip.
Answer:
A
Step-by-step explanation:
We can substract the wavength of the violet light to the wavelength of the red light:
(6.5 x 10^-7 m) - (4.0 x 10^-7 m) = 2.5 x 10^-7 m