penny reads 10 pages in 1/3 of an hour. What is the unit rate for pages per hour? For hours per page?

Penny reads 14 pages in 1/3 hour.
In order for us to know the rate of penny, the number of hours per page, we need to do ratio and proportion.

14 : 1/3 = X : 1
1/3X = 14
X = 42

So there are 42 pages Penny can read in 1 hour.

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)