Pi/2 falls at 90 degrees on the unit circle, or 0,1. And since sin is the y value, sin (pi/2) = 1
Answer:
<em>At least 18 chocolates sold to collect $225</em>
Step-by-step explanation:
<em>~ Let's say x ⇒ the number of chocolates, y ⇒ the number of cookies ~</em>
1. We can see that the number of chocolates/ cookies * the cost of chocolates/cookies = the total cost of chocolates/cookies. Provided this, it would be that 3x and 2.5y would represent the cost of chocolates and cookies.
2. It is given that there was $225 sold from chocolates and cookies, so we can say that 3x + 2.5y = 225 from this assumption.
3. That being said it is also known that the cookies were sold to 60 people, so we can assume that 60 cookies were sold out, 1 were person. With this information we can see that 3x ⇒ 3 * 60 = <em>180 ⇒ cost of cookies sold</em>
4. Now we can substitute this value of 3x into the equation 3x + 2.5y = 225, as such: 3x + 2.5y = 225 ⇒ 180 + 2.5y = 225, <em>and now we can solve for y ~</em>
180 + 2.5y = 225,
2.5y = 225 - 180,
2.5y = 45,
y = 45/2.5,
y = <em>At least 18 chocolates sold to collect $225</em>
Answer:
25 gallons of sulfuric acid
Step-by-step explanation:
Find how much sulfuric acid is in the tank by finding 50% of 50 (the total gallons of solution):
50(0.5)
= 25
So, there are 25 gallons of sulfuric acid.
7.
Multiply 30 by 1.47 and that gets how many scale units you have. Then divide the scale by 6.3 and you’ll get 7.
Hope this helps!
Answer:
your mom lol sooooooooooooooo
