Answer:
48 regular keyboards, 16 wireless keyboards
Step-by-step explanation:
To find the number of each type of keyboard sold, we need to form and solve 2 equations.
Define variables used:
Let the number of regular keyboards and wireless keyboards sold be r and w respectively.
Equation from total sales:
Sales from regular keyboards= $83r
Sales from wireless keyboards= $115w
Total sales= $(83r +115w)
83r +115w= 5824 -----(1)
Equation from number of keyboards sold:
r= 3w -----(2)
Let's solve the simultaneous equations by substitution!
Subst. (2) into (1):
83(3w) +115w= 5824
249w +115w= 5824
364w= 5824
Divide both sides by 364:
w= 16
Subst. into (2):
r= 3(16)
r= 48
Thus, 48 regular and 16 wireless keyboards are sold.
Supplementary:
Do check out the following for an example on solving equations by elimination: https://brainly.com/question/19575460
