MDF Midterm Review #1 PDF

Name: __________________ Midterm Review 1 1) 𝑦 = 5𝑥 − 3 This calculates the revenue based on units produced....

Name: __________________ Midterm Review 1 1) 𝑦 = 5𝑥 − 3 This calculates the revenue based on units produced. What is the revenue when x = 5? 2 How to Solve: S(S) - 3 25 - 3 = 22 2) { (40 , $9000) , (10 , $1250) , (20 , $5500) } The given data set shows the units produced with resulting profit. Estimate the profit when the units produced is 30. ↑ => How to Solve: 3) Costco increased their prices of a chicken bake at their food courts to $4. - - Their increased revenue is modeled by: (x-y)*(4-3) I · What is (x-y) ? How to Solve: Y original $) Amount sold , after 4) 𝑟(𝑣 + 1) + (𝑟 − 5)𝑣 - You are bringing cupcakes to share. The store has vanilla and red velvet for $1/cupcake more, you survey the class on their preference, more want red - velvet, you get the shown expression. - Which is the cost for all the vanilla cupcakes? - How to Solve: Cr -5) v  Midterm Review 2 5) Marshalls has a 10% sale on purchases under $50 and a 20% sale if $50+, your cart is currently $46. - - How much would you save if you bought a random $4 item at the checkout aisle? - I #00 4 60 20 % of $50 $10 $46 = How to Solve: 10 % of =. 50 · 0 20 46 Sc. 00 T. saved - 40. 6) Covid hiked up the average used car price from $20k to $30k. What % increase is that? How to Solve: wil = 05050 7) At 4% simple interest, how many years till the money is worth double? $3-$6 = How to Solve: 2 sys + 3 + 100 % 8) You found an amazing bank that has an annual interest rate of 12%, paid monthly. How much interest do you expect to earn in 3 months if you put in only $100 to start? months & 100 % 3101% How to Solve: - 1 %= 1 month = 12 - 1 01. 100 1 01. 1 01 1 81 ·... = 103 03. 9) On a $5000 vehicle at 24% APR over 5 years, what’s the interest amount on the 1st monthly payment? 24 12 - How to Solve: months 5000. 2 % = 28= 1 month 5000. 0 02. = $100 10) You are late on your loan, which has a 36% APR that is calculated monthly. What's the charge for the month if you owed $2000? How to Solve: 36 % = 12 mo 2000. 3 % 36 T2 = 3 % = 1 Mo 2000 - 0. 03 = $60