Library

IM: 7.5.3: Changing Elevation (Practice)

By Newsela Staff
Last updated 3 months ago
13 Questions
What is the final elevation if:

A bird starts at 20 m and changes 16 m?

A butterfly starts at 20 m and changes -16 m?

A diver starts at 5 m and changes -16 m?

A whale starts at -9 m and changes 11 m?

A fish starts at -9 meters and changes -11 meters?

One of the particles in an atom is called an electron. It has a charge of -1. Another particle in an atom is a proton. It has charge of +1. The charge of an atom is the sum of the charges of the electrons and the protons. A carbon atom has an overall charge of 0, because it has 6 electrons and 6 protons and -6 + 6 =0. Find the overall charge for the rest of the elements on the list.

Add:

14.7 + 28.9

-9.2 + 4.4

-81.4 + (-12)

51.8 + (-0.8)

Last week, the price, in dollars, of a gallon of gasoline was g. This week, the price of gasoline per gallon increased by 5%. Which expressions represent this week's price, in dollars, of a gallon of gasoline? Select all that apply.

Decide whether the table could represent a proportional relationship. If the relationship could be proportional, what would be the constant of proportionality?

Annie’s Attic is giving away $5 off coupons.

Decide whether the table could represent a proportional relationship. If the relationship could be proportional, what would be the constant of proportionality?

Bettie's Boutique is having a 20% off sale.