Answer:
Step-by-step explanation:
it flew 3.21 meter further
4 meters = 400 centimeters
400-79= 321 centimeters
321 centimeters = 3.21 meters
The answer is 204. Your well
The 12 lb bag for $ 18 is better to buy.
Step-by-step explanation:
Given,
Choice 1: A 12 lb bag for $ 18.
Choice 2: A 15 lb bag for $ 24.
To find which choice is better.
<u>For choice 1:</u>
12 lb bag cost $ 18
1 lb bag costs = $ 18÷12 = $ 1.5
<u>For choice 2: </u>
15 lb bag cost $ 24
1 lb bag costs = $ 24÷15 = $ 1.6
Hence,
The 12 lb bag for $ 18 is better to buy.
Let the output = Y and the input = X.
The output (y) is 7 more than 3 times the input (x), which can be written as an equation:
Y = 3X+7
The out put is -8, so replace Y in the equation and solve for X:
-8 = 3X+7
Subtract 7 from each side:
-15 = 3X
Divide both sides by 3:
X = -15 / 3
X = -5
The input is -5