Operations w/ Rational Numbers
0.8 x 1/2
0.4 or 2/5
What is the ratio of circles to squares?
5:6
What is the formula for an equation involving slope?
y = mx+b
Figure 1
x = 4
What are the formulas for:
Circumference
vs.
Area of a circle?
C = 2*pi*radius OR pi*diameter
A = pi*radius squared
-3.5 + 2 * 4.1
4.7
What is the percent of change formula?
change/original = %/100
OR
new/original = %/100, where you have to subtract the % and 100.
True or False: Rate of Change and Slope are the same thing.
True
Figure 2
x = 36
Radius is _____ of the length of a circle
Diameter is ______ length of a circle
Radius is half of the length of a circle
Diameter is full length of a circle
A candle sells for $4.65. Alexa wants to buy 7 candles. There is a $15.39 delivery fee. How much will Alexa need to pay in total?
$47.94
Calli earned $70 on Monday. Her pay increases to $100 the following Monday. What is the percentage increase? Round to the nearest WHOLE number.
43% increase.
DAILY DOUBLE:
A graph contains the points (4, 5) and (-2, 10). What is the slope of this line?
-5/6
Figure 3
x = 96
What is the circumference of a circle if its radius is 5.6?
35.168
Marshall ran 6.5 miles in 20.4 minutes on Monday, then ran 1.79 miles in 3.8 minutes on Tuesday. How far did Marshall run in total?
139.402 miles
Korra originally had 120 trees in her forest. Her company chopped down 50 trees. What is the percent decrease of trees? Round to the nearest whole number.
42% decrease.
What is the strategy that we use to find slope on a GRAPH?
Rise over run
Figure 4
x = 6
What is the area of a circle if its diameter if 8?
50.24
DAILY DOUBLE:
-1/2(5.6) - (2.45 * 8.1)
-22.645
DAILY DOUBLE:
Perry currently has 500 cars on sale at the dealership. This is a 45% increase from how many cars were there originally. How many cars did the dealership have originally? Round to the nearest whole number.
345
How do I locate the "b" value in the equation y = mx + b
It is where the graph crosses the y-axis
It is where the graph "touches" the y-axis
It is the "starting point" of the graph
In similar figures, the side lengths are proportional while the angles are always congruent(equal)
True
What is the area of a HALF circle whose radius is 7?
76.93