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Open Up - Grade 7 - Mathematics - Unit 8 - Lesson 1

Last updated 11 months ago

5 questions

1

1

1

1

1

"Source: Open Up Resouces (Download for free at openupresources.org.)"

Question 1

1.

Lin is interested in how many of her classmates watch her favorite TV show, so she starts asking around at lunch. She gets the following responses:
If she asks one more person randomly in the cafeteria, do you think they will say “yes” or “no”?

Yes

No

Question 2

2.

An engineer tests the strength of a new material by seeing how much weight it can hold before breaking. Previous tests have held these weights in pounds:
Do you think that this material will be able to hold more than 1,000 pounds in the next test?

Yes It will hold more than 1000 pounds on the next test

No It will not hold more than1000 pounds on the next test

Question 3

3.

A company tests two new products to make sure they last for more than a year.
Product 1 had 950 out of 1,000 test items last for more than a year.
Product 2 had 150 out of 200 last for more than a year.
If you had to choose one of these two products to use for more than a year, which one is more likely to last?

Product 1

Product 2

Question 4

4.

Put these numbers in order from least to greatest.(Least on top greatest on bottom.)

0.3
0.6

Question 5

5.

A small staircase is made so that the horizontal piece of each step is 10 inches long and 25 inches wide. Each step is 5 inches above the previous one.
What is the surface area of this staircase?