Suppose you want a guitar. It cost $756. About how much would you save every month for 6 months to be able to buy the guitar? Fo
2 answers:
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Answer:
, There are many more "equivalent" expressions such as
or
.
Step-by-step explanation:
Combine like terms for the 2 "x".
That is your most simplified expression.
Answer:
Option A - Permutation; number of ways = 210
Step-by-step explanation:
Given : At a competition with 7 runners, medals are awarded for first, second, and third places. Each of the 3 medals is different.
To find : How many ways are there to award the medals?
Solution :
There are 7 runners but medals are three.
The first runner up got first medal as one is locked.
The second runner up got second medal as second is locked.
The third runner up got the third medal.
So, There is a permutation.
Number of ways to award the medals is
We know,
Substitute the values,
Therefore, Option A is correct.
Permutation; number of ways = 210
Answer:
Step-by-step explanation:
Subtract 20x
add 15
Combine like terms
Divide by -25 (NOTE: When dividing or multiplying by negative numbers the inequality sign flips.)