Answer:
The cost of 1 calculator is $28.00
Step-by-step explanation:
You haven't mentioned the question. Anyways if you want to find the value of 1 calculator, the simplest method ( in my opinion) you could do so in the ratio method:
5 calculators : $140
1 calculators : x
( x is the cost of 1 calculator. You have to find x. )
Cross multiply both the ratios. Multiply 5 with x and 140 with 1.
5x = 140 × 1
5x = 140
Bring 5 to the other makes 140 divided upon 5, as it was multiplied with x.
x = [tex]\frac{140}{5}[/tex]
x = $28
You could not only find the cost of 1 calculator, but any number of calculators. Just replace the number of calculators with 1 calculator that I have found the cost of.
