Answer:
She read 250 words per minute.
Step-by-step explanation:
Simply divide the words read by the time took to read that amount = (2000/8) words per minute = 250 words per minute.
Hope this helped!
Answer:
cost of each video game = $5.50
cost of each movie = $4.25.
Step-by-step explanation:
Let m represent cost per movie
g represents cost per video game.
Create two equations to represent the total cost Tammy rented movie and video games in each month, and solve simultaneously for each variable:
First month:
=> equation 1
Second month:
=> equation 2
Multiply equation 1 by 4, and multiply equation 2 by 2 to derive:
4 × ![2m + 3g = 25](https://tex.z-dn.net/?f=%202m%20%2B%203g%20%3D%2025%20)
2 ×
=> equation 3
=> equation 4
Subtract equation 4 from equation 3
You'd have:
- 4g = - 22
Divide both sides by -4
g = 5.5
Thus, the cost of each video game = $5.50.
Substitute g = 5.5 in equation 1 and solve for m.
![2m + 3g = 25](https://tex.z-dn.net/?f=%202m%20%2B%203g%20%3D%2025%20)
![2m + 3(5.5) = 25](https://tex.z-dn.net/?f=%202m%20%2B%203%285.5%29%20%3D%2025%20)
![2m + 16.5 = 25](https://tex.z-dn.net/?f=%202m%20%2B%2016.5%20%3D%2025%20)
Subtract 16.5 from each side
![2m = 25 - 16.5](https://tex.z-dn.net/?f=%202m%20%3D%2025%20-%2016.5%20)
![2m = 8.5](https://tex.z-dn.net/?f=%202m%20%3D%208.5%20)
Divide both sides by 2
![m = 4.25](https://tex.z-dn.net/?f=%20m%20%3D%204.25%20)
Thus, cost of each movie = $4.25.
C. 8- 6i
(3- i) to the power of 2 (expand the expression)
9- 6 i + i to the power of 2
calculate
9 - 6i - 1
calculate
8- 6i.
Answer:
$263.50
Step-by-step explanation:
$7.75 (money earned per hour) x 17 (hours worked per week) = $131.75 per week. Biweekly means every two weeks so you're going to multiply the amount you earn per week by 2. The answer is then 263.50.
This expression simplified is 3x-9. This is solved by combining like terms.
-x + 4x = 3x
-5 - 4 = -9