So 1=6/8 minute
1=3/4 minute
multiply both sides by 4
4=3 minutes
3 times what=15
divide by 3
what=5
4=3 minutes
mulitpliy both sides by 5
20=15 minutes
answer is 20 bags
What I like to in these problems is the grouping method. Split it into x^3-5x^2 .... 6x-30. Then factor so x^2 (x-5) and 6 (x-5). Now that both are factored put the coefficients together and use (x-5). This means that you have (x^2+6) and (x-5). Solve and your zeroes are + and - root 6 and 5.
Answer:
x + y ≤ 12
Step-by-step explanation:
Inequality:
Not more than 12 means less than or equal to 12
x + y ≤ 12
Second degree equations always have two (not necessarily different) solutions. We are told that 9 is one solution to w² - 81 - 0. To find the other, we can solve it for w and look for both.
w² - 81 = 0
w² = 81
w = √81
w = 9 OR w = -9
When solving by square roots, you need the solution and its opposite. That's because while 9 * 9 = 81, (-9) * (-9) = 81 as well.
The other solution is -9.
Answer:
9m
Step-by-step explanation:
-17+26=9 (Or 26-17=9)