Max and his father Kirk are comparing their ages. They know that the sum of their ages is 52 and
that Kirk is seven years older than four times Max's age.
(a) If Max's age is represented by m and Kirk's age by, write a system of equations that describes the two relationships from the problem

let Max's age =m

Kirk's age=k

k=7+4m

k-4m=7(i)

k+m=52(II)

k=7+4m(III)

from equation 1 substitute 7+4m for k in

equation 2.

7+4m+m=52

5m=52-7

5m=45

m=45/5

m=9

.:Max's age is 9 years.

From equation (2) k+m=52

k+9=52

k=52-9

k=43

:. kirk's age is 43 years.

22 dimes and 9 nickels

step-by-step explanation:

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5