harita must memorize 90 measures of music for her cello solo at a concert. she plans on memorizing 18 new…

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?\no m = 72 - 15d\no m = 90 - 6d\no m = 101 - 21d\no m = 108 - 3d

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?\no m = 72 - 15d\no m = 90 - 6d\no m = 101 - 21d\no m = 108 - 3d

Answer

Explanation:

Step1: Calcular la tasa de memorización diaria

Ella memoriza 18 medidas cada 3 días. Entonces la tasa diaria es $\frac{18}{3}=6$ medidas al día.

Step2: Encontrar la ecuación

Comenzó con 90 medidas para memorizar. Después de $d$ días, ha memorizado $6d$ medidas. Entonces el número de medidas $m$ que todavía necesita memorizar es $m = 90-6d$.

Answer:

$m = 90 - 6d$