Well they both have integers in it there the same thing except your adding and subtracting. Subtraction is the same thing as adding the opposite of the number.

8 0

3 years ago

Create a system of equations to represent the word problem. Then solve using the linear combination/elimination method. Show all

Leno4ka [110]

Answer:

Solution given:

model A printers [a] prints=80books per day

model B printers [b] prints=55books per day

total no of printers =9

no of model A printers be x

and

no of model B printers be [9-x]

According to the question;

ax+(9-x)b=670 books

substituting value of a and b; we get

80x+(9-x)55=670

80x-55x+495=670

25x=670-495=175

x= $\frac{175}{25}$ =7

So;

no of model A printers =x=7

no of model B printers =9-x=9-7=2

is your answer.

8 0

3 years ago

Read 2 more answers

How do you find the volume of a pyramid?

amm1812

By knowing the volume of a triangle and that the triangle has all equal sides

4 0

3 years ago

Read 2 more answers