Ratios and rates
In class there is 10 boys and 15 girls in the class. Find the simplest form for boys to girls.
Answer: 2/3
Which of the following is a irrational number
A: sq root of 16
B: 0.6666…
C: pie
D: -5
C!
5x + 3x
Answer: 8x
If two angle of a triangle are 60 degrees and 50 degrees, what is the missing third part?
Answer: 180 degrees - (60 + 50) = 70 degrees.
Find the mean of this data set: 4,8,6,5,9,7,8,8,10.
Answer: 7.22
The rate of miles per hour
100/5
20 mph
Classify “pie” sq root of 5, and 0.25
All of them are irrational!
7y -2y +4
Answer: 5y +4
Find the perimeter of a rectangle with a length of 8cm and a width of 5cm
Answer: 2 x (8cm + 5cm) = 26 cm
Solve for the median for 5, 8, 10, 10, 12, 14, 16.
median is 10 and the mode is 10.
A grocery store sells a 5-pound bag of apples for $7.50. What is the Unit price per pound?
$2.00
Convert 0.232323 to a fraction
Answer x=23/99
X/5=4
Answer: x=20
A straight line is divided into two angles. If one angle is 155 degrees, what is the other angle?
Answer: 25 degrees
Solve mean
-6 16 2 0 -2 -5 5
1.43
A ratio of 2:5 can be expressed as a fraction or a decimal
, representing the first value as a portion of the second.
Answer:⅖ or 0.4
Find the unit digit of 55 to the power of 725 + 73 to the power of 5810 + 22 to the power of 852.
The answer is zero
Simplify 6(p +3q) - (7 + 4q)
Answer: 6p +14q - 7
Is this answer true or false?
By creating a right triangle with the radius “r”, radius “R”, and half the chord length (10mm), the Pythagorean theorem states R to the power of 2 = r to the power of 2 + 10 to the power of 2, or R to the power of 2 - r to the power of 2 = 100. The area is pie(R to the power of 2 - r to the power of 2) = 100pie.
True
Solve the mean
6 11 -7 4 -23 3 4
-0.2857
The amount of weeks it would take for 170 sheep to graze the field if 240 sheep can graze a field in 5 weeks, and 200 sheep can graze it in 7 weeks
10 weeks
Convert 10011 to the power of two into a decimal.
Answer: 1( to the power of 4)+ 0(2 to the power of 3)+ 0(2 to the power of 2)+ 1(2 to the power of 1) + 1(2 to the power of 0).
If 24x to the power of two + 25x + -47a = (ax - 2)(-8x -3) -53a, where x doesn’t equal to 2/a and find the value of A
Answer: -3
Inside a large square, a smaller square is inscribed such that its vertices bisect the sides of the larger square. If the larger square has a side length of
, find the ratio of the area of the outside square to the area of the inscribed (inside) square.
Answer : 2:1
A conservation group wants to estimate the number of fish in a lake. They catch 50 fish, tag them, and release them. A week later, they catch 100 fish and find that 8 are tagged. Based on this sample, what is the estimated total fish population in the lake?
Answer: 625