The option that is the best buy is option 3.
<h3>What is the best buy? </h3>
The best buy is the option that has the lowest average cost. Average cost is the total cost of the bottles divided by the number of bottles.
Average cost = total cost / number of bottles
Option 1: $8.75 / 5 = $1.75
Option 2: $5.97 / 3 = $1.99
Option 3: $6.36 / 4 = $1.59
Option 4: $12.60 / 7 = $1.80
To learn more about division, please check: brainly.com/question/194007
Answer:
56.52
Step-by-step explanation:
c=2
r
C=2*3.14*9
C=56.52
Answer:
the answer is 7
Step-by-step explanation:
the right angle is 90°
90-55=35
35÷5=7
Answer: 4
Step-by-step explanation: To have an equation with no solution you have to get something like 0=1 meaning you have to remove all the variables. In this equation you would distribute to get xy+2y+2x=2x+12+4x where y is the missing number. then combining like terms you get xy+2x+2y=6x+12. Subtracting 2x from both sides you get xy+2y=4x+12. Now to get the variables gone y has to be 4 so that the variables to cancel out. By plugging in 4 you can see this works; 4x+8=4x+12 and by subtracting 4x from both sides you get 8=12 which is not true meaning there is no solution.
Answer:
10 terms
Step-by-step explanation:
equate the sum formula to 55 and solve for n
n(n + 1) = 55 ( multiply both sides by 2 to clear the fraction )
n(n + 1) = 110 ← distribute parenthesis on left side
n² + n = 110 ( subtract 110 from both sides )
n² + n - 110 = 0 ← in standard form
Consider the factors of the constant term (- 110) which sum to give the coefficient of the n- term (+ 1)
the factors are + 11 and - 10 , since
11 × - 10 = - 110 and 11 - 10 = + 1 , then
(n + 11)(n - 10) = 0 ← in factored form
equate each factor to zero and solve for n
n + 11 = 0 ⇒ n = - 11
n - 10 = 0 ⇒ n = 10
However, n > 0 , then n = 10
number of terms which sum to 55 is 10