<h3>Given</h3>
- 5 movies and 2 video games rent for $26
- 3 movies and 8 video games rent for $53
<h3>Find</h3>
<h3>Solution</h3>
Let m and v represent the rental cost of a movie and a video game, respectively. The given information can be expressed in two equations:
... 5m +2v = 26
... 3m +8v = 53
Using Cramer's rule, we can find the solution to be
... m = (2·53 -8·26)/(2·3-8·5) = -102/-34 = 3
... v = (26·3-53·5)/-34 = 5.50
The rental cost for each movie is $3; for each video game is $5.50.
_____
The Vedic math variation of Cramer's Rule tells you the solution to
is ...
- x=(bf-ec)/(bd-ea)
- y=(cd-fa)/(bd-ea)
Answer:
yes
Step-by-step explanation:
im not bad human but really nice so
Given:
The expression is
The steps are given.
To find:
The mistake in her steps.
Solution:
We have,
The correct steps are shown below.
Step 1: Taking out x as common factor.
Step 2: Now, taking out 2x² as common factor from first two terms (first group of terms) and -1 form last two terms (second group of terms) in the parentheses.
Step 3: Taking out (x+1) as common factor.
She incorrectly factored -1 from the second group of terms.
Therefore, the correct option is B.
The difference between 1,968 and 3,000 is 1,038. You can check the answer using inverse operations by adding 1,038 and 1,968. If it gives 3,000 then the answer is right. 3, 000 - 1,968 = 1,038.
1,038 + 1,968 = 3,000
