Equations and Expressions
Increase or decrease?
1.05x
Increase-> It's greater than 1.
A rectangle has side lengths 3 and 5. It is scaled by a factor of 5. What are the measurements of the scaled drawing?
15 and 25
What is the constant of proportionality?
1/4 y=x
K=4
What does sample mean?
The small group that you survey
How far away is 2 from 0?
2
Simplify the expression:
12x-5+4x+2
16x-3
What is the missing angle measurement of the triangle with 45 and 80 degrees as its angle measurements?
55 degrees.
180-80= 100-45= 55
What is the constant of proportionality?
y | x
3 | 18
4 | 24
5 | 30
k=6
Which would be bigger, sample or population?
Population
What word means to subtract?
The difference, how far apart...
Factor the following expression:
5x+30
5(x+6)
What shape do you get when you cut a cone horizontally?
Circle or ellipse (elongated circle)
What is the equation of proportionality where k=1/2?
y= (1/2) x
What is the population?
Ms. Leca wants to know how awesome the students think she is at JDMS, so she asks her students.
Students at JDMS
-30-45
-75
What does '>' mean? Create an example problem.
Greater than. X is greater than 10.
A set of angles are complementary. One of the angles measures 30 degrees. What does the other angle measure?
Complementary means they add to 90 degrees. 90-30=60
Books | Dollars
2 | $14
3 | $21
4 | $28
What does (4,28) mean?
4 books for $28
Is the following biased or representative?
Ms. Leca wants to know how awesome the students think she is at JDMS, so she asks her students.
Biased: Only asks a small portion of the school
When you multiply two negatives you get a ....
Positive
Solve for X:
4x+12= 32
x=5
What is the missing measurement of the rectangular prism:
Volume= 30
height=5
length=3
Width= ?
Width=2
Loraleigh walks 1/2 mile every 1/4 hour. How much does she walk per hour?
2 miles
Give me a example of a representative sample for the following problem.
I want to know what the students at JDMS think about the COVID lockdown.
Example:
Send out a survey on TEAMS
Do you get a positive or a negative?
-35/5
Negative