Answer:
1st one and the third one
Step-by-step explanation:
25(0)=25
25+0=25
We know that
2 liters of pure water = 0 % of sugar
8 liters of syrup = 48% of sugar
Water = (2 liters x 0%) = 0 total sugar liters
Syrup = (8 liters x 48%) = 3.84 total sugar liters
Total liter mix =8+2-----> 10 liters
Total liters of sugar = 0 + 3.84 = 3.84
if 10 liters-----------> 100%
3.84 liters--------> x
X=3.84*100/10-----> x=38.4%
the answer is
38.4%
3.42. 342 hundredths is a decomposition of 3.42. On the place value chart if you write 3 ones 4 tents and 2 hundredths and then decompose it to a unit you get 342 hundredth. Hundredth is the unit.
You would need to calculate the original cost with the tax then find the tip because the tip is always a percent out of the total cost including tax
If you have double functions, solve the one in the parentheses first.
in f(g(2)), solve g(2) first.
So, substitute 2 in the function.
g(x) = x^2 - 6x - 7
g(2) = 2^2 - 6(2) - 7 = -15
If you substitute -15 in f(g(2)), it becomes f(-15).
f(x) = x + 8
f(-15) = -15 + 8
f(-15) = -7
The answer for f(g(2)) is -7.
