Fractions
Simplify 24/36 to lowest terms
2/3
Solve
3x+5=17
4
What is a system of equations?
a. Transitive equality
b. a set of two equations with the same variables that can be solved simultaneously
c. A proportional relationship that includes integers
d. Y=mx+b
b. a set of two equations with the same variables that can be solved simultaneously
How many degrees in a triangle (what do we get if we are adding all three angles together)?
180 degrees
Put the following decimals in order from smallest to largest:
0.05, 0.5, 0.005, 0.055
0.005, 0.05, 0.055, 0.5
(1/3)(1/4)
a. 1/7
b.2/7
c.1/12
d. 2/12
c. 1/12
Solve for y: 2y-3x=6
y= 3x/2+6/2
The solution to a system of equations is:
a. a point on a graph shared by two lines
b. x and y values that work in two different equations
c. Often written as an ordered pair (x,y)
d. All of the above
d. All of the above
A triangle has a 90 degree angle, and a 35 degree angle. What is the size of the third angle in degrees?
a. Unknowable
b. I could be any size.
c. 72.5 degrees
d. 55 degrees
d. 55 degrees
0.8+0.231 =
0.239
1/4+5/8 =
7/8
Solve: 3x-4=-5x+12
x=2
What is the quickest way to solve the following system?
y-x=4
x+2y=14
Elimination
How many sides of a triangle can be exactly the same length?
a. All must be different
b. None, two or three can be the same length
c. Only two can be the same length
d. Three are always the same length
b. None, two or three can be the same length
(2.3) (1.4)=
3.22
Put the following fractions in order from smallest to largest:
3/8, 1/2, 3/16, 1/4
3/16, 1/4, 3/8, 1/2
-2(x-1)-5x+2-(x-8)
-8x+12
Solve:
y-x=4
x+2y=14
(2,6)
True or False
The two shortest sides lengths of a triangle must sum greater than the longest side.
True
(0.75)(6)=
4.5
What is six divided by one half? (See White board)
12
Solve for y when x is 4: y=2x-3
y=5
Not all systems have solutions because:
a. Lines can be parallel
b. Slope of lines can be the same
c. Lines don't always cross
d. All of the above
d. All of the above
What is the size of angle a? (see diagram on white board)
90 degrees
2/0.25=
8