At shayna’s printing company LLC there are two kinds of printing presses: Model A which can print 40 books per day and Model B which can print 70 books per day. The company owns 13 total printing presses and this allows them to print 820 books per day. How many of each type of press do they have?

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

the answers are in the images, i received 100% on this assignment. hope this !

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

d 600 because 15*10*2=300

300+300=600

step-by-step explanation: