Answer:
Part 1)
Part 2)
Step-by-step explanation:
<u><em>Analize two problems</em></u>
Part 1) If y varies directly with x, and If y=-8 and x= -3 what’s x when y= 6
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or
step 1
Find the value of the constant of proportionality k
For x=-3, y=-8
substitute the given values
step 2
Find the linear equation
step 3
Find the value of x when y=6
substitute the value of y in the linear equation
solve for x
simplify
Part 2) If y varies inversely with x, and If y=-8 and x= -3 what’s x when y= 6
we know that
A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form or
step 1
Find the value of the constant of proportionality k
For x=-3, y=-8
substitute the given values
step 2
Find the equation
step 3
Find the value of x when y=6
substitute the value of y in the equation
solve for x
Answer:
<em>11 / 16</em>
Step-by-step explanation:
5/16 + 6/16
5 + 6 = 11
Denominator stays the same (16)
11 / 16
Answer:
$6.48
Step-by-step explanation:
First, let's find the discount.
1.60 * 0.1 = $0.16 (the discount)
Second, subtract the discount to the original price.
1.60 - 0.16 = $1.44 (price after discount was applied)
Third, multiply to 4 1/2 to find how much it will cost.
1.44 * 4.5 = $6.48 (price of 4 1/2 pounds of apples with discount applied)