How can expressions be written and evaluated to solve for unknowns in the real world?
Writing expressions requires figuring out which quantity in a situation is unknown, and define a variable to represent that quantitiy.
We look for words in the problem that will help us out what kind of operation to use in a given situation.
Example:
Donna bought 5 chocolate bars, and then ate some. Write an expression to represent how many chocolate bars Donna has left.
If we let the variable c represent the number of chocolates Donna has eaten, then we can write the expression on how many bars Donna has left as: 5 - c
Answer:
A
Step-by-step explanation:
Can't be B and C because it's less than 1. Can't be D because there's a y intercept. Also, I could be wrong
Answer:
20
Step-by-step explanation:
Answer:
6 means go to the right six times while -7 means go down seven times
Step-by-step explanation:
Easy
first term is n=1
so 10th term is n=10
5(10)+100=50+100=150
150 is 10th term
