If 100 Envelopes Cost 70 Cents

If 100 envelopes cost 70 cents, what would 250 envelopes cost? 3

3 boxes of 100 envelopes can cost $ 2.10, but more will come later.

At least 38

Price of 100 envelopes = 70 cents,

Then

250 cost = 70/100 x 250 = 175 cents,

Or,

250 is 2 1/2 times 100.

To get the answer, multiply 70 by 2 1/2.

70 x 2 1/2 = 70 x 5/2

The answer is 350/2 or 175 cents.

(100/70) Price of 1 package

10/7 (250 = 2500/7 cents

If 100 Envelopes Cost 70 Cents

Instead of buying 100 envelopes, he wants 250. That's 2.5 times more.
250/100 = 2.5 times
Therefore, e should be 2.5 times larger (assuming e is linear):
0.70 + 0.70 + 0.35 = 1.75
Answer:
1.75 USD
2.5 x 70 cents = 175 cents = $ 1.75
(250 envelopes) (70 Â) / (100 envelopes) = 175 Â = $ 1.75