Answer:the number of black tiles that Todd used is 27
Step-by-step explanation:
Let x represent the number of black tiles that Todd used.
Todd has 21 white tiles and some black tiles to make a mosaic. Each tile has an area of 3 square. It means that the total area of the white tiles is 21 × 3 = 63 cm^2
The total area of the white tiles is x × 3 = 3x cm^2
The mosaic has a total area of 144 Square centimeters. It means that
3x + 63 = 144
3x = 144 - 63 = 81
x = 81/3 = 27
Answer:
Please stop with this unless its for math. Others need more help :)
Step-by-step explanation:
Unless this was a real math problem please tell me <u>otherwise. </u>

Answer : He spends 2 hours doing paperwork each day.
Hope this helps. - M
Hey there!
Distance formula:
d =
Plug in variables:
d = 
Simplify.
d = 
d =
The distance between the two points is
units.
Hope this helps!
Answer:
Terminating decimals have a finite number of digits after the decimal point while Repeating decimals have one or more numbers or sequences of repeating numbers after the decimal point.
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