Mike and kate plan to save money for their wedding over a 20 month period. they will need to save $8,000 to pay for the wedding. they set aside the same amount each month. after a year they saved $4,000. mike and kate know they must adjust their plan in order to meet their goal, so they came up with the following options: option a: stay with saving the same amount they've been saving each month but postpone the wedding 2 months. option b: increase the amount of money they save each month by $80 from what they've been saving. which of the following is a true statement?

option b

money still left to save = $4000

money earned in 12 months = $4000

money earned in 8 months = 4000/12 *8= 2666.66

by increasing the savings by $80(each) for 8 months,

additional money saved = 160 * 8 = 1380

total money earned = 2666.66 + 1380= $4046.66

this is the required amount

b). 4320 have a nice day

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x