Ms. Johen is making a rectangular mosaic on her wall. She wants to use 12 rows of tiles, with 20 tiles in each row. If she has 188 yellow tiles, how many blue tiles will she need to complete her design?:
52
48
64
334
12*20 = 240
240 - 188 = 52
52
A computer game starts with a set of 125 tiles separated into 25 equal groups.Janene played the game until there were 6 groups of tiles left.How many tiles were left when Janene finished?
A wall tile is shaped like a square the primeter is 40 inches. What is the length of each sides?
How many 3by3 tile would it take to install a 12by18 floor.
To find the answer, you need to calculate the total number of tiles needed for the rectangular mosaic. The formula to calculate the total number of tiles is:
Total number of tiles = Number of rows x Number in each row
In this case, Ms. Johen wants to use 12 rows of tiles with 20 tiles in each row. So, the total number of tiles needed is:
Total number of tiles = 12 x 20 = 240
Ms. Johen already has 188 yellow tiles. To determine how many blue tiles she will need to complete the design, subtract the number of yellow tiles from the total number of tiles needed:
Number of blue tiles needed = Total number of tiles - Number of yellow tiles
Number of blue tiles needed = 240 - 188 = 52
Therefore, Ms. Johen will need 52 blue tiles to complete her design.