N is -4 because -4x2=-8 and -8+3=-5
Answer:
76.8 words per minute
Step-by-step explanation:
Answer:
well bart has 20.00
andy took 19.65
Step-by-step explanation:
subtract ![20.00\\-19.65\\\\_______\\0.35](https://tex.z-dn.net/?f=20.00%5C%5C-19.65%5C%5C%5C%5C_______%5C%5C0.35)
your answer should be 0.35
Answer:
its 4+4+2+1+4=15/5=3 average not 4
Step-by-step explanation:
Answer:
4/3 kg
Step-by-step explanation:
Let x represent a half brick, let y represent a 1 brick.
We know that 1 brick and 1/2 brick weigh 1 kg. so we represent this as
![x + y = 1](https://tex.z-dn.net/?f=x%20%2B%20y%20%3D%201)
We know that obviously x is half of y. so
![x = \frac{1}{2} y](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20y)
Subsitur this for x.
![\frac{1}{2} y + y = 1](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%20y%20%2B%20y%20%3D%201)
![\frac{3}{2} y = 1](https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B2%7D%20y%20%3D%201)
![y = \frac{2}{3}](https://tex.z-dn.net/?f=%20y%20%3D%20%20%5Cfrac%7B2%7D%7B3%7D%20)
This means one block weight 2/3 kg. So how much 2 weigh.
![\frac{2}{3} \times 2 = \frac{4}{3}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B3%7D%20%20%5Ctimes%202%20%3D%20%20%5Cfrac%7B4%7D%7B3%7D%20)