Answer:
- 45 regular keyboards
- 15 wireless keyboards
Step-by-step explanation:
A set of 3 regular and 1 wireless keyboard would sell for ...
3×$83 +110 = $359
For the given sales, the number of sets sold was ...
$5385/($359/set) = 15 sets
Since there are 3 regular keyboards in each set, there were 3×15 = 45 regular keyboards sold. The number of each type of keyboards sold is ...
45 regular keyboards and 15 wireless keyboards
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<em>Comment on this solution</em>
When a problem statement tells you the ratio of one kind of item to another, it is often convenient to group the items in that ratio and deal with the groups. Sometimes, there will be a few missing or left over, for example "10 more than 3 times as many." In those cases, you can make an adjustment to the total and still deal with the groups. (Any equations you might write will effectively do this same thing.)
Answer:
-8
Step-by-step explanation:
we have from the statement:
BC
B = -4
C = 2.
we need to multiply B and C
B*C=(-4)*(2)
we have
B*C=-8
The answer is -8
Answer: -406
Step-by-step explanation:
We have the following expression:
In addition we know:
and 
If we substitute this in the expresion, we will have:
Answer:
C
Step-by-step explanation:
If you plug in 4 to the equation it looks like this:
48-5= 20+23. Subtract 5 and add 23, to get 43=43. That statement is true so it's 4.
Answer:
ok so a it' probabily 21 or a number between 1-10
Step-by-step explanation:
