14. jade and chet get a weekly allowance plus x dollars for each time the pair walks the dog. they plan to…

14. jade and chet get a weekly allowance plus x dollars for each time the pair walks the dog. they plan to save 40% of their combined earnings in one week to purchase a new app for their smart tablet. their earnings in a certain week are represented in the table. if their parents pay $2.50 each time they walk the dog, how much money will they have to purchase the app?

14. jade and chet get a weekly allowance plus x dollars for each time the pair walks the dog. they plan to save 40% of their combined earnings in one week to purchase a new app for their smart tablet. their earnings in a certain week are represented in the table. if their parents pay $2.50 each time they walk the dog, how much money will they have to purchase the app?

Answer

Explanation:

Step1: Find the combined earnings

Jade's earnings: (8 + 2x). Chet's earnings: (4x+6). Combined earnings (=(8 + 2x)+(4x + 6)=8+6+2x + 4x=14 + 6x). Since (x = 2.5) (the amount per dog - walk), substitute (x) into the combined - earnings formula. (14+6\times2.5=14 + 15=29).

Step2: Calculate the savings

They save (40%) of their combined earnings. Savings (=0.4\times29=\frac{4}{10}\times29=\frac{116}{10}=11.6).

Answer:

(11.6)