The answer is D.
The cup was tossed 40 times, and landed right side up 13 times. So divide those numbers to get 
.
The volume of the 12% salt solution to be added is; 2.5 gallons.
<h3>Ratio and Proportion of Volume</h3>
Let the volume of 12% required be x and the new volume of the mixture be (x+5).
On this note, it follows that;
Hence, -2x = -5
Divide both side by -2;
x = 2.5 gallons.
Read more on ratios and Proportions;
brainly.com/question/13513438
Answer:
16
Step-by-step explanation:
a^5=x
a^3=y
a^-1=z
(a^5)^2×a^3÷(a^-1)^3
a^10×a^3÷a^-3
a^16 log a(a^16)
16
V = 1¹/₃πr³
V = 1¹/₃(3.14)(2)³
V = 1¹/₃(3.14)(8)
V = 1¹/₃(25.12)
V ≈ 33.493 in³
Answer:
the correct answer is 23$
Step-by-step explanation:
15% off takes 15% of the whole price
hope this helps
