Day 2 more practice over 6.1 Ratios & Proportions

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, expressed as 'a to b' or a:b.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the terms and set the products equal to each other.

Tags

CCSS.7.RP.A.2C

Front

What is the formula for finding the ratio of boys to girls in a class?

Back

The ratio of boys to girls is found by dividing the number of boys by the number of girls.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If the ratio of two angles in an isosceles triangle is 8:6, how do you find the measure of the vertex angle?

Back

First, find the total parts (8+6=14). Then, divide 180 degrees by 14 to find the value of one part, and multiply by 8 for the vertex angle.

Tags

CCSS.8.G.A.5

Front

Back

q = 23

Tags

CCSS.8.EE.C.7B

Front

What does it mean if two ratios are equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities.

Tags

CCSS.6.RP.A.3A

Front

How do you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both terms by their greatest common divisor.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first quantity is the numerator and the second is the denominator.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Back

b = 38

Tags

CCSS.4.NF.A.1

CCSS.3.NF.A.3B

CCSS.3.NF.A.3A

Front

What is the ratio of boys to girls if there are 18 boys in a class of 30 students?

Back

The ratio of boys to girls is 3:2.

Tags

CCSS.6.RP.A.2

CCSS.6.RP.A.1