Answer:
Step-by-step explanation:
Let 25% solution is x liters, then 50% solution is (80 - x) liters.
<u>Acid content is going to be same:</u>
- 0.25x + 0.5(80 - x) = 80*0.4
- 0.25x - 0.5x + 40 = 32
- 0.25x = 8
- x = 8/0.25
- x = 32 liters
So 32 liters of 25% solution and 80 - 32 = 48 liters of 50% solution
The answer is 4pi because the formula to find the circumference is C = 2 pi r. this question is asking for the terms of pi which means you remove the pi from the formula and solve it with out it. the radius is 2 because of the 2 units on the graph is halfway of the circle. you would just multiply 2 x 2 and get 4. after that you put the pi on the end of the 4. so the answer is C. (4pi)
(x cookies) / (23 students - (12/2) students) = 2 cookies per student
[x / (23 - 6)] cookies per student = 2 cookies per student
23 students * (2 cookies per students) - 12 cookies = x cookies
The "students" unit cancels
46 cookies - 12 cookies = x cookies
x cookies = 34 cookies
Answer:
1/4
Step-by-step explanation:
Simplify the following:
(1/6)/(2/3)
Multiply the numerator by the reciprocal of the denominator, (1/6)/(2/3) = 1/6×3/2:
3/(6×2)
3/6 = 3/(3×2) = 1/2:
1/(2×2)
2×2 = 4:
Answer: 1/4
brainlest owo pleasse
After 5 days
You can solve this by plugging 5 in.
-3(5)+42 = 27
4(5)+7 = 27
They have the same result.
