Answer:
75%
Step-by-step explanation:
1/4 = 25%
100% - 25% = 75%
OR
1 - 1/4 = 3/4
100 ÷ 4 = 25
25 × 3 = 75%
I hope this helps and that you have a great day! :)
<em>Ravenna</em>
A) 2x + 3y = 2. (1)
x - 2y = 8. (2)
modify (1) to be: 2x = 2-3y
= x = 1-1.5y
put (1) into (2) so: (1-1.5y)-2y = 8
-3.5 y = 7
3.5 y = -7
y = -7/3.5
y=-2
Answer:
- A(1) = -4
- A(n) = A(n - 1) - 6
Step-by-step explanation:
<h3>Given</h3>
- AP with the explicit formula A(n) = 8 - 6(n - 1)
<h3>To find </h3>
<h3>Solution</h3>
<em>Recursive formula is the formula A(n) = A(n - 1) + d</em>
<u>Based on the explicit formula we have:</u>
- A(n) = 8 - 6(n - 1) = 8 - 6n + 6 = 2 - 6n
- A(n - 1) = 2 - 6( n - 1) = 2 - 6n + 6 = 8 - 6n
<u>The common difference is:</u>
- d = A(n) - A(n - 1) = 2 - 6n - (8 - 6n) = 2 - 6n - 8 + 6n = - 6
<u>The first term is:</u>
- A(1) = 2 - 6(1) = 2 - 6 = -4
<u>So the recursive formula is:</u>
- A(1) = -4
- A(n) = A(n - 1) - 6
We are told that 21% of the total cans is 63 cans, therefore
100% of all the cans collected would be.
(63*100)/21=300 cans were collected in all
Let me know if you need some help........