Question

An office manager orders one calculator or one calendar for each of the office's 60 employees. Each calculator costs $15, and each calendar costs $10. The entire order totaled $800.

Part A: Write the system of equations that models this scenario. (5 points)

Part B: Use substitution method or elimination method to determine the number of calculators and calendars ordered. Show all necessary steps. (5 points)

Answer 1

system of equations that models this scenario.

x= calculators

y = scales

B

x+y=60

15x+10y=800

per substitution:x=60-y

15(60-y)+10y=800

900-15y+10y=800

-5y=800-900

y=100/5=20

we calculate x:

x+y=60

x+20=60

x=60-20 = 40

he ordered 40 calculators, 20 calendars