Scale Drawings & Circles
15:45=x:15
x = 5
Make the same color
3 White 8 Green
(Hint = Proportional Relationship)
The first one to get it correct!
20 - (-5) + 3 = ?
Find the ?
? = 28
What is the angle called when there are 2 or more angles that fit 180 degrees?
Supplementary angle
In 8th grade, there were 79 boys and x girls. The total was 200 people in 8th grade.
What is the amount of girls?
121
Area of a circle
π x r2
There are 10 circles in a bag.
There are 2 blues and 8 greens inside.
What is the percentage of blues in the bag?
20%
3x-(-7x+7)=3
x=1
if the three length is 23,19, 42, are you able to make a triangle?
No
There are 10 circles in a bag.
There are 3 1000$ balls and 7 100$ balls inside.
Bob takes 1 and keeps it and then Nick takes 1.
What is the probability of Bob getting a 1000$ and Nick getting a 100$?
7/30
Find the Circumference of a circle when the Radius is 56.
112 x π
There is a car toy that cost $12 and they are going to discount 25% and sell it. How much do you need to pay to buy it?
$3
x + (5+3x) = -4(x+6) -3
x=-4
What is a triangle called if two sides are congruent to each other while the other side is unequal. The two angles opposite to the equal sides are congruent to each other.
Isosceles Triangle
Bob does Wii Sports [Bowling]. He has a probability of 1/9 on getting a strike. He does 3 games. What is the probability of Bob getting all strikes?
1/729
Select all of the scales that are equivalent to 5:7
1. 9:63/5 2. 19:136/5 3. 7:10
4. 12:84/5 5. 0:0
1, 4
The cost of every college is expected to increase 3.5% next year. Write an equation that will help calculate the cost of other colleges next year. Use t to represent this year's cost and n to represent next year's cost
1.035t=n
x-4[x-2(x+6)]= 4x + 3
X = -45
Test dummy 1 has a probability of ⅓ on getting a question right and Test dummy 2 has a probability of ¼. There were 5 questions. What is the probability of Test dummy 1 getting question 1 or 3 correct. (When a dummy is the first to get a question correct, the game ends). EX. Test dummy 1 does question 1 first then dummy 2 does it.
5/12
A bus has wheels of a diameter of 0.7m. How many times must a wheel of the bus rotate for covering the distance of 2200m between two towns?
Hint = Find the Circumference (You could use a Calculator and round it to the 0.? point)
1000 Times (Not correct if not rounded to the 0.? point)
There are five red beads, one yellow bead, and four blue beads in the pocket. Find the percentage of the blue Goosen number to the total number of beads.
40%
x2-4x+4 = 0
Find the x.
x = 2
Is the Obtuse triangle’s circumscribed circle’s circumcenter inside the obtuse triangle or outside?
Outside