5^-3=0.008
1/2=0.5
0.5*0.008=0.004
5/0.004=1250
Answer:
Part A: 2w=1.25w+6
Part B: 8
Step-by-step explanation:
For part b solve for w
2w=1.25w+6
Subtract 1.25w from both sides
0.75w=6
Divide 0.75 on both sides
w=8
30%. You can get this by dividing the number of them by the total number and multiplying by 100.
Example case:
![\begin{cases}x+y=1\\2x+2y=2\end{cases}](https://tex.z-dn.net/?f=%5Cbegin%7Bcases%7Dx%2By%3D1%5C%5C2x%2B2y%3D2%5Cend%7Bcases%7D)
The second equation is twice the first, so subtracting that from the second equation yields the identity 0 = 0.
This is an identity. It's an equation that holds true (clearly, 0 is the same as 0) regardless of the values of the variables, which means any pair of numbers
![(x,y)](https://tex.z-dn.net/?f=%28x%2Cy%29)
is a solution to the system.
Answer:
3285
Step-by-step explanation:
5x3144=15720
3990
15720+3990=19710
19710/6=3285