The scale on a map is 8cm : 4km
If the distance between two cities is 16km, how far apart in cm are the two cities on the map?
32cm
100
What is -4 + 23?
19
100
8x + 12 = 52
X=5
100
A piece of copper wire 42 cm long is bent into the shape of a rectangle whose width is twice its length. Find the dimensions of the rectangle.
the rectangle is 7 centimeters long and 14 centimeters wide.
100
A box contains 5 red balls and 8 violet. A ball is removed and replaced by two of the other color and then a second ball is drawn.
The probability that the second ball is violet.
200
In science class, the girl to boy ratio is 12 to 11 ratio
If there is 60 girls how many boys are There
55 boys
200
What is 78+-13?
65
200
X - 13 = 27
X=40
200
A circular swimming pool with a diameter of 28 feet has a deck of uniform width built around it. If the area of the deck is 60 square feet, find its width.
the deck is two feet wide.
200
The population of a New York City was 8,363,710 in 2008. It was expected to increase by 1,201,987 by the end of 2009. What was the expected population of New York City at the end of 2009?
9,565,697
300
The scale is for every 17 dog there is 13 cats. If there is 119 dogs how many cats are there?
91 cats
300
What is 13 x -4?
-52
300
2x - 4 = 10
X=7
300
The radius of a circle is 3 centimeters. What is the circle's circumference?
The circumference is 6 cm
300
If there is a red, blue, yellow, and green marble in a bag what is the probability that you take out a yellow marble and then a blue marble what is the probability that will happen?
1/16
400
Express the ratio in simplest form: $10 to $45
2/9
400
What is -51 x -51?
- 2601
400
6x + 13 = 85
X=12
400
A square has an area of sixteen square centimeters. What is the length of each of its sides?
The length of each side is 4 centimeters.
400
Find the average of these: 96 67 23 89 53 76 52.
65.14
500
In the park mentioned above, the ratio of ducks to geese is 16 to 9. How many of the 300 birds are geese?
108 geese
500
What is 245 x 9?
2205
500
12x -44 = 100
X=12
500
A square has a perimeter of 24 inches.
What is the area of the square?