Answer:
it's the 4th one
Step-by-step explanation:
Because ab is not negative but c has the negative sign in front of it
Answer: 54
Step-by-step explanation:
3x3=9
9x3=27
27x2=54
To find the number of black bicycles in a total of 25 bicycles given a ratio, divide the total number of bicycles by the total number of parts in the ratio and multiply by the number of parts representing black bicycles.
To find the number of black bicycles, we first need to find the total number of parts in the ratio. The ratio of gray bicycles to black bicycles is 6 to 9, which means the total number of parts is 6 + 9 = 15. We can then calculate the number of black bicycles by dividing the total number of bicycles by the total number of parts and multiplying by 9. So, the number of black bicycles is (25/15) x 9 = 15 bicycles.
#SPJ2
Answer:
25%
Step-by-step explanation:
Initial hourly pay of Mario = $8
Current hourly pay of Mario = $10
Increment = current hourly pay - initial hourly pay = $10-$8 = $2
% increase in hourly pay rate = increment/initial pay × 100$
℅ increase = $2/$8×100%
% increase = 1/4×100%
%increase = 25%
Therefore, percent increase in marios hourly pay rate is 25%