contestada

Alex’s printer can print 8 photos in 12 minutes.
Khalil’s printer can print 24 photos in 1 hour.
Which process could you use to help determine how much longer it will take Khalil’s printer to print 120 photos than Alex’s?

Respuesta :

calculista

Answer:

[tex]120\ minutes[/tex]

Step-by-step explanation:

step 1

Alex’s printer

we know that

print 8 photos in 12 minutes

so

by proportion

Find  how long will it take the printer to print 120 photos

[tex]\frac{12}{8}=\frac{x}{120}\\ \\x=120*12/8\\ \\x=180\ minutes[/tex]

step 2

Khalil’s printer

we know that

print 24 photos in 1 hour (60 minutes)

so

by proportion

Find  how long will it take the printer to print 120 photos

[tex]\frac{60}{24}=\frac{x}{120}\\ \\x=120*60/24\\ \\x=300\ minutes[/tex]

step 3

Find the difference

[tex]300\ minutes-180\ minutes=120\ minutes[/tex]

Answer:

120 min

Step-by-step explanation:

Otras preguntas