Open Up - Grade 8 - Mathematics - Unit 7 - Lesson 12
By Formative Library
starstarstarstarstar
Last updated over 2 years ago
5 Questions
1
1.
Which is larger: the number of meters across the Milky Way, or the number of cells in all humans?
Some useful information:
- The Milky Way is about 100,000 light years across.
- There are about 37 trillion cells in a human body.
- One light year is about 10^6 meters.
- The world population is about 7 billion.
8.EE.4
8.EE.3
1
2.
Ecologists measure the body length and wingspan of 127 butterfly specimens caught in a single field.
Draw a line that you think is a good fit for the data.(Show Your Work)
Write an equation for the line.(Short Answer)
8.EE.4
8.EE.3
1
3.
Ecologists measure the body length and wingspan of 127 butterfly specimens caught in a single field.
What does the slope of the line tell you about the wingspans and lengths of these butterflies? (Short Answer)
8.EE.4
8.EE.3
1
4.
Diego was solving an equation, but when he checked his answer, he saw his solution was incorrect. He knows he made a mistake, but he can’t find it.
Where is Diego’s mistake and what is the solution to the equation?
8.EE.4
8.EE.3
1
5.
The two triangles are similar. Find x.
8.EE.4
8.EE.3
"Source: Open Up Resouces (Download for free at openupresources.org.)"