Question

Cost of 105 envelopes is $350 how many envelopes can be purchased for $100

Answer 1

Answer:

Step-by-step explanation:

given that 105 envelopes =  $350

                  x envelopes  = $100

by cross multiplying the two equations

 105× 100 = 350 × x

now x = 105 × 100 / 350

x = 30 envelopes

30 envelopes can be purchased in $100