Scale Drawings
True or false: A scale drawing is one that is stretched out
False, it can be bigger or smaller but not stretched
True or false: A proportional relationship is when one quantity or variable can always be multiplied by the same thing to get the other quantity or variable.
True
True or false: The radius of the circle is the length of a line that goes all the way across the circle through the center
False, that is the diameter
What is 50% of $120
$60
42 + -15
27
What is Mr. Craig's favorite color?
Orange
Every hour that passes of the day, Kayden blinks exactly 1230 times. Is this a proportional relationship?
Yes
If the diameter of a circle is 18 feet, what would the length of its radius be?
9 feet
If Da'vion buys a bag of Takis for $4.00 and the store charges 6% tax, what is the final sale price after tax?
$4.24
10 - (-5)
15
A rectangle is 5 inches by 3 inches. Using a scale factor of 4, what would the dimensions of the new scaled rectangle be?
20 inches by 12 inches
Mr. Craig goes for a run and it takes 8 minutes to run a mile. The next mile takes him 10 minutes. Is this a proportional relationship?
No, because each mile does not take the same amount of time.
What is pi equal to?
3.14
From one store, an iphone 15 costs $1000. If they have a 20% off sale one day, what would the new price of the phone be?
$800
Solve the following equation
-17 + d = -25
-8
I make a scale drawing of our classroom using a scale of 1 to 5 (meaning the drawing is 5 times smaller than the actually size of the room)
The dimensions of the room are 20 feet by 25 feet. What would the room dimensions be in my drawing?
4 feet by 5 feet
Let's pretend Kyle has a job. He makes $90 from 6 hours of work. What is the constant of proportionality? (or in other words, how much does he make every hour?)
$15
If the length of the diameter of a circle is 10 inches, what is roughly the length of the circumference (which is the length of the outside of the circle)?
about 31.4 inches (because 10 x 3.14 = 31.4)
If Demi gets three out of four questions correct on a quiz (3/4), what would his percentage be?
75%
-0.5 * 21
-10.5
The area of a school desk is about 6 square feet. If I design a new giant desk whose lengths are three times longer on both sides, what would the area of this new desk be?
54 square feet
In the equation y = 12x, x represents the height of a student in feet and y represents their height in inches.
If Brad is 4.75 feet tall, what is y equal to?
57 inches tall
What is the area of a circle if its radius is 4 centimeters?
about 50.24 cm2 (because 3.14 x 4 x 4 = 50.24)
Write the fraction 4/10 as a percentage and a decimal
40% and 0.40 (or 0.4)
-25 divided by -0.1
250