Harita must memorize 90 measures of

Harita must memorize 90 measures of music for her cello solo at a concert. She plans on memorizing 18 new measures for every 3 days of practice. Which equation can be used to determine m, the number of measures Harita still needs to memorize, as a function of d, the number of days of practice since she began learning the piece?

m = 72 – 15d
m = 90 – 6d
m = 101 – 21d
m = 108 – 3d

Kết quả (Klingon) 1:

90 'aD QoQ cello solo DeSDu' concert ghob'e' memorize harita. nab ghaH 18 'aD chu' memorizing Hoch 3 jaj qeq. laH DanoHmeH baS equation m, 'aD So'meH jaj qeq qaSchoH 'ay' ghoj ghaH tagh memorize, law' d, Qap reH nIS harita mI' qIlmeH pIj?m 72 – 15 d =m 90 – 6 d =m 101 – 21 d =m = 108 – 3d