Math pretty much has its own language. In an expression, u have to " break it apart " to make each term
one more then the product of a number and 7 decreased by 5...
" product " means multiply.....so the product of a number and 7 would be 7n.
one more then the product....(7n + 1)....." decreased" means subtract....
so ur expression is : (7n + 1) - 5
(7n + 1) - 5....when n = 6
(7(6) + 1) - 5 =
43 - 5 =
38 <==
Answer:
105
Step-by-step explanation:
3 times 7 times 7 - 2
would be 21 times 5
In order to invert a function, switch y and x in the definition, and solve for y again:
![y=2x+1 \mapsto x=2y+1](https://tex.z-dn.net/?f=y%3D2x%2B1%20%5Cmapsto%20x%3D2y%2B1)
Solving for y, we have
![x=2y+1\iff x-1=2y \iff y=\dfrac{x-1}{2}](https://tex.z-dn.net/?f=x%3D2y%2B1%5Ciff%20x-1%3D2y%20%5Ciff%20y%3D%5Cdfrac%7Bx-1%7D%7B2%7D)
500 milligrams are in one half gram
The fraction would probably be the speed as well so here:
You do 20/45 which simplifies to 4/9
So the speed/fraction for this problem is 4/9 (feet per second)
P.S. I'm sorry if this is hard to understand