An artist makes three types of ceramic statues at a monthly cost of $650 for 180 statues. the manufacturing costs for the three types are $5,$4, and $3. if the statues sell for $20,$12, and $9,respectively, how many of each type should be made to produce $2,100 in monthly revenue?

we have three unknowns and so need three equations

for costs  

x+y+z=180

5x+4y+3z=650

for revenue

20x+12y+9z=2100

x+y+z=180

5x+4y+3z=650

x=30

y=50

z=100

he spend 5.1 minutes chatting with his friends

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5 1/10

well my understanding of this question is they want you to use the y=14.1x -2.3 and put the coordinates they gave you onto the line segment of   y=14.1x -2.3

step-by-step explanation: