Answer:
5 cars and 3 busses
Step-by-step explanation:
Expand 8(5-r)/5=-2r as indicated: 40 - 8r
----------- = - 2r
5
Multiply both sides by 5, obtaining 40 - 8r = - 10r
Combine like terms: 40 = - 2r
Divide both sides by -2: -20 = r
The solution to 8(5-r)/5=-2r is -20. Verify this by subbing -20 for r in the given equation.
Answer:
17. z=18
18. n=-15
19. j = -50
20. a=-27
21. h=-15
22. d=.392
Step-by-step explanation:
17. Multiply both sides by 3, then subtract 6 from both sides
![\frac{z+6}{3}=8\\\\\frac{z+6}{3} * 3 = 8\\\\z+6=8*3\\z+6=24\\](https://tex.z-dn.net/?f=%5Cfrac%7Bz%2B6%7D%7B3%7D%3D8%5C%5C%5C%5C%5Cfrac%7Bz%2B6%7D%7B3%7D%20%2A%203%20%3D%208%5C%5C%5C%5Cz%2B6%3D8%2A3%5C%5Cz%2B6%3D24%5C%5C)
![z+6-6=24-6\\\\z=18](https://tex.z-dn.net/?f=z%2B6-6%3D24-6%5C%5C%5C%5Cz%3D18)
18. Multiply both sides of the equation by 2, then add 7
![\frac{n-7}{2}=-11\\\\ n-7 = -22\\\\n=-15](https://tex.z-dn.net/?f=%5Cfrac%7Bn-7%7D%7B2%7D%3D-11%5C%5C%5C%5C%20n-7%20%3D%20-22%5C%5C%5C%5Cn%3D-15)
19. Multiply both sides by -4, then subtract 18 from both sides.
![\frac{j+18}{-4}=8\\ j+18 = -32\\j = -50](https://tex.z-dn.net/?f=%5Cfrac%7Bj%2B18%7D%7B-4%7D%3D8%5C%5C%20j%2B18%20%3D%20-32%5C%5Cj%20%3D%20-50)
20. Add six to both sides, then multiply both sides by 3
![\frac{1}{3} a-6=-15\\\\\frac{1}{3}a=-9\\\\a=-27](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D%20a-6%3D-15%5C%5C%5C%5C%5Cfrac%7B1%7D%7B3%7Da%3D-9%5C%5C%5C%5Ca%3D-27)
21. Subtract 4 from both sides, then multiply both sides by 4
![\frac{1}{4}=\frac{1}{4}h+4\\\\-\frac{15}{4}=\frac{1}{4}h\\\\\\-15 = h](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D%3D%5Cfrac%7B1%7D%7B4%7Dh%2B4%5C%5C%5C%5C-%5Cfrac%7B15%7D%7B4%7D%3D%5Cfrac%7B1%7D%7B4%7Dh%5C%5C%5C%5C%5C%5C-15%20%3D%20h)
22. Subtract 6.42 from both sides, then divide both sides by -10
![6.42-10d=2.5\\\\-10d=-3.92\\\\d =\frac{-3.92}{-10} \\\\d=.392](https://tex.z-dn.net/?f=6.42-10d%3D2.5%5C%5C%5C%5C-10d%3D-3.92%5C%5C%5C%5Cd%20%3D%5Cfrac%7B-3.92%7D%7B-10%7D%20%5C%5C%5C%5Cd%3D.392)
3- The number of tickets each game requires.
18 - The number of tickets bought.
g - The number of games played.
The "3g" represents the number of games we can determine Zhi and Diego went to. Both equations have values and variables that mean the same thing, however Diego chose to use the distributive property in setting up his equation.
Answer:
Rs. 2970 is the interest
Step-by-step explanation:
30 months is same as 30/12 = 2.5 months
I = PRT/100
P is 18000
R is 6.6%
T is 2.5 years
Substitute all these
I = (18,000 * 2.5 * 6.6)/100
= 2970