The high school band and chorus are putting on a spring concert. the two groups together want to perform no more than 15 songs and the concert has to be 60 minutes or less in length. each piece the band performs is about 5 minutes in length. each piece the chorus sings is about 3 minutes in length. which system of inequalities best represents the number of songs the band performs (x) and the number of longs the chorus performs (y) for the concert?

Step-by-step explanation:

x = band songs

y = chorus songs

x + y < = 15 (thats less then or equal to)

5x + 3y < = 60 (thats less then or equal)

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)