Unit 1/2
A scale drawing of a school gym uses a scale of 10 cm : 50 m. If the drawing shows the gym as 6 cm long, what is the actual length of the gym?
60m
A circle has a radius of 2cm. What is the circumference?
18.85cm
If something is discounted 75%, what does that mean?
The items is on sale, cheaper than before
NO CALCULATOR: -3 - (-4) =
1
Supplementary angles measure at ____ degrees
180
A triangle has a side length of 52 mm. The second triangle is minimized and has a side length of 4 mm. How many times smaller is the second triangle?
13 times smaller
Find the area of a circle with a radius of 10.
314
A pony costs $187. It is on sale for 5% off. How much of a discount are you receiving?
$9.35
True or False: It doesn't matter what order you add or subtract positive and negative numbers.
False: Subtraction: Order does matter
Example: 5−2=3 but 2−5=−3
Two angles are complementary. One angle measures 80 degrees. What is the other angle measured at?
10 degrees
2 : 7.5
8 : 30
5 : 18.75
What is the constant of proportionality?
3.75
A pizza has a diameter of 20 inches. What is the area?
314.16 in squared
A boating bill is $7,970. You want to leave a 25% tip for the boat people. How much money will you give as a tip?
$1992.50
A mountain climber started at 300 ft. Then they went down 185 ft. back up 76 ft, up 90ft more and then ended by going down 80 ft. What was the final elevation?
Describe a unique triangle. What information tells us its unique?
Unique triangles can only be drawn one way, if all side lengths are given, it is unique.
The width of a scaled copy of a park is 3 cm wide and 5 cm long. The actual width of the park is 150 m wide. What is the area of the actual park?
37,500m squared
Give an example for when you would have to calculate the area of something and the circumference of something.
You would calculate area when you want to know how much space is inside something.
You would calculate circumference when you want to know the distance around something.
A family spent $230 on amusement park tickets. They had to pay a sales tax of 27.5%. They also paid $28 for parking. How much money did they pay for the tickets?
230+63.25+28=$321.25
The members increased their elevation 290 feet during their hike this morning. Now they are at an elevation of 450 feet.
Write an equation to describe the situation.
x + 290 = 450
Describe a simulation where you have a 1/3 chance of winning every time you play.
Rock, paper, scissors
Dice win if its a 1 or 2
answers may vary
At a store, 24 kangaroos cost $1,600.50. How much do 11 kangaroos cost?
$733.56 66.687 per kangaroo
Which is bigger? The circumference of a cake with a radius of 4 or the area of a cookie with radius of 8?
201.06>25.13
the area of the cookie is bigger.
A jacket was $70 but is now selling for $35. What % discount did it have?
50%
3(x+4) = 27
x = 5
Describe an event that is...
impossible
unlikely
likely
certain
equal
answers may vary