MO-E Week 5 HW - NLMC Spring 2015 Grade 7

Front

What is the formula to calculate a percentage increase?

Back

To calculate a percentage increase, use the formula: Percentage Increase = ((New Value - Original Value) / Original Value) * 100%.

Tags

CCSS.6.RP.A.3C

Front

If Hussain has 20% more baseball cards than Shyam, how do you express Hussain's cards in terms of Shyam's?

Back

Let S be the number of baseball cards Shyam has. Hussain's cards can be expressed as: H = S + 0.2S = 1.2S.

Tags

CCSS.6.EE.B.6

Front

If David has 25% more baseball cards than Hussain, how do you express David's cards in terms of Hussain's?

Back

Let H be the number of baseball cards Hussain has. David's cards can be expressed as: D = H + 0.25H = 1.25H.

Tags

CCSS.6.EE.B.6

Front

How do you find the total number of students if three-quarters checked out books and 36 students didn’t?

Back

Let T be the total number of students. If three-quarters checked out books, then one-quarter did not. So, (1/4)T = 36, which means T = 36 * 4 = 144.

Tags

CCSS.HSA.CED.A.3

Front

What is the relationship between the number of books checked out and the total number of books in the library?

Back

If three-quarters of the students checked out one-tenth of the library books, then: Books Checked Out = (3/4)T = (1/10)Total Books.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.

Tags

CCSS.8.G.A.5

Front

If Larry drew two acute triangles, what is the maximum possible measure of an interior angle?

Back

In an acute triangle, all interior angles are less than 90 degrees. The largest angle must be less than 90 degrees.

Tags

CCSS.8.G.A.5

Front

How do you calculate the number of different 4-digit numbers that can be formed using specific digits?

Back

To calculate the number of different 4-digit numbers using the digits 2, 0, 1, and 5, consider that the first digit cannot be 0. Total = (3 choices for the first digit) * (3 remaining digits) * (2 remaining digits) * (1 remaining digit) = 3 * 3! = 18.

Front

What is the ratio of pizzas to people if 12 pizzas can feed 18 people?

Back

The ratio of pizzas to people is 12:18, which simplifies to 2:3. This means for every 2 pizzas, 3 people can be fed.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the number of pizzas needed to feed a different number of people based on a ratio?

Back

Using the ratio of pizzas to people, set up a proportion. If 12 pizzas feed 18 people, then for 12 people: (12 pizzas / 18 people) = (x pizzas / 12 people). Solve for x.

Tags

CCSS.7.RP.A.3