A delivery service charges a base price for an overnight delivery of a package plus an extra charge for each pound the package weighs. A customer is billed $22.85 for shipping a 3-pound package and $40 for shipping a 10-pound package.
1.) Write an equation that gives the total cost of shipping a package as a function of the weight of the package.
2.)Find the cost of shipping a 15-pound package.
I don't get ANY of this.
haha its simple. The answer is 7 duh
jk sorry my brother said that
No worries! I can help you understand the problem and guide you through finding the answers.
1.) To write an equation that gives the total cost of shipping a package as a function of the weight, we need to identify the base price and the extra charge per pound.
Let's assign some variables:
- Let's call the base price "B."
- Let's call the extra charge per pound "C."
- Let's call the weight of the package "W."
With this information, we can set up the equation as:
Total Cost = Base Price + (Extra Charge per Pound x Weight of Package)
Or, in symbols, the equation can be written as:
Total Cost = B + C * W
Now, using the given information, we can substitute the values:
For the 3-pound package, the total cost is $22.85. So we have:
22.85 = B + C * 3
For the 10-pound package, the total cost is $40. So we have:
40 = B + C * 10
These two equations will allow us to find the values of B and C.
2.) To find the cost of shipping a 15-pound package, we need to know the values of B and C, which we can find by solving the equations we derived in step 1.
I will show you how to solve these equations using the method of substitution or elimination. Here, we will use the substitution method:
From equation 1: 22.85 = B + C * 3
We can rewrite equation 1 as: B = 22.85 - C * 3
Now, substitute this value of B in equation 2:
40 = (22.85 - C * 3) + C * 10
Simplifying the above equation will give us the value of C.
Once we have C, we can substitute it back into equation 1 to find the value of B.
After determining the values of B and C, we can use the equation (Total Cost = B + C * W) to find the cost of shipping a 15-pound package by substituting the known values.
I hope this explanation helps you understand the problem better. Please let me know if you need any further clarification or assistance with the calculations!
Describe the correlation
(31,580)
(39,680)
(19,480)
(34,590)
(43,660)
(39,640)
(35,570)
1.) 15.50+2,45/lb
2.) $52.25
Correlation: r=0.94