There are 4 new books and 7 used books on a shelf. (a)what is ratio of all books on the shelf to used books?

(B) what is the ratio of new books to all books on shelf

Working on itts i’m going to need you to me as i go along 1-5

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?