The solution to the problem is as follows:
To Washington DC, she travelled a total of 54538 - 54250 = 288 miles.
Therefore, 288 miles / 9 gal = 32 miles/gal.
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
Answer:
Cost of One Journal = $3.99
Cost of One pen = $0.59
Step-by-step explanation:
Let
Cost of One Journal = x
Cost of One pen = y
We can make equation from given statements.
Mr. Bowden purchases 18 journals and 40 pencils for $95.42.
Ms. Jacinto purchases 11 journals and 16 pencils for $53.33.
Now solving these equations to find the value of x
Multiply eq(1) with 2 and eq(2) with 5
We get the value of x is: x=3.99
Now, putting value of x in equation 1 to find value of y.
So, we get the value of y: y = 0.59
Now, finding the costs:
Cost of One Journal = x = $3.99
Cost of One pen = y = $0.59
8x - 4y = 8
-4y = -8x + 8
y = -8x/-4 + 8/-4
y = 2x - 2, comparing to y = mx + c, slope m = 2
Slope = 2.