Answer:
Total charge per month = $ 16 + (0.08) * x
equation for having same charge
0.08 x - 0.12 y = 8
Step-by-step explanation:
Part 1:
Monthly fee = $ 16
Per check fee = $ 0.08
Checks signed in month = x
Total Charge monthly = Monthly fee + Checks fee
Putting the values
Total charge per month = 16 + (0.08) * x ...........(i)
Part 2: Let she signs y checks for account B
Monthly fee of B = $ 14
per check fee = @ 0.12
Total Charge = monthly fee + checks fee
= $ 14 + y *(0.12) ..................(ii)
For having same value in the bank then equation (i) and (ii) shuld be equal to each other
i.e.
16 + 0.08x = 24 + 0.12y
0.08 x - 0.12 y = 24-16
0.08 x - 0.12 y = 8
this will be the equation
Every hour the factory makes 200 shirts. (1200/6)
Thus, every 9 hours the factory makes 1800 shirts.
To make 12,600 shirts, the factory will need to have at least 7 workdays.
(12600/1800) = 7
K = kims age, s = her sisters age
k = 2s
k + s = 36
2s + s = 36 <== ur equation
3s = 36
s = 36/3
s = 12 <== the sister is 12
k = 2s
k = 2(12)
k = 24 <== Kim is 24