Step-by-step explanation:
i. 3x-1=20
or, 3x= 21
x= 7
ii. 3x+1= 22
3x= 21
x= 7
iii. 2x-5=99
2x= 104
x=52
iv. g(3)= 3+5/2= 11/2
g(0)= 0+ 5/2=5/2
g(-3)= -3+5/2 = -1/2
x+5/2= 0
so, x= -5/2
If you drive 1000 miles, then you would multiply $0.05 * 1000 miles =$50.
Answer: The building is 54 feet tall.
Step-by-step explanation:
- Set up a proportion. It should be 12/2 = x/9.
- Simplify the proportion to 2x = 108.
- Divide 2 to both sides of the equation. The solution should be x = 54.
The 13.5 fl. oz bottle is better, because it is cheaper per ounce.
The 16 fl. oz bottle is $6.19, so it is $6.19/16oz = $0.38/oz
The 13.5fl. oz bottle is $3.99, so it is $3.99/13.5oz = $0.29/oz
0.29 is less than 0.38, thus the 13.5 oz is cheaper and the better buy.