Answer:
The cost per pound for turkey is 0.87.
A 12-pound turkey would cost $10.44.
The turkey weighed 22 pounds.
Step-by-step explanation:
You know that the cost of a turkey, c, that is w pounds is represented by the equation c=0.87*w
<em>What is the cost per pound for the turkey?</em>
The direct proportionality function is called any function in which the dependent variable (y) is obtained by multiplying the independent (x) by a constant value. This type of function is called a linear function and has an expression of the form:
y=m*x
where m is the constant of proportionality.
Comparing both expressions, it is observed that the constant of proportionality for this case has a value of 0.87, and indicates the cost per pound for the turkey. That is, the cost per pound for turkey is 0.87.
<em>How much would a 12 pound turkey cost? </em>
Being c=0.87*w, then you know that the value of w is 12 pounds. Replacing:
c= 0.87*12
you get:
c=10.44
A 12-pound turkey would cost $10.44.
<em>Karen spent $19.14 on a turkey. How many pounds did it weigh?</em>
Being c=0.87*w, then you know that the value of the cost c is $19.14. Replacing:
19.14= 0.87*w
and solving you get:
w=19.14 ÷0.87
w= 22
The turkey weighed 22 pounds.
