sierraaaas18
contestada

A midwestern music competition awarded 40 ribbons. The number of blue ribbons awarded was 2 less than the number of white ribbons. The number of red ribbons
was 3 more than the number of white ribbons. How many of each kind of ribbon was awarded?

Respuesta :

texaschic101

Answer:

Step-by-step explanation:

r + w + b = 40

b = w - 2

r = w + 3

now we sub

(w + 3) + w + (w - 2) = 40....combine like terms

3w + 1 = 40

3w = 40 - 1

3w = 39

w = 39/3

w = 13 <=== 13 white ribbons

b = w - 2......13 - 2 = 11 <=== 11 blue ribbons

r = w + 3......13 + 3 = 16 <=== 16 red ribbons

Otras preguntas