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 : 1,500 candles.
Explanation : If there are 50 cartons, but only 30 were loaded:
50 - 30 = 20 cartons left to load.
And if there are 75 candles in each carton :
20(75) = 1,500 candles left to load
The simple interest formula allows us to calculate I, which is the interest earned or charged on a loan. According to this formula, the amount of interest is given by I = Prt, where P is the principal, r is the annual interest rate in decimal form, and t is the loan period expressed in years. The rate r must be converted from a percentage into decimal form.
Then, 2,000 = 1,000 * r * 10 ;
Finally, r = 2 ÷ 10 = 20 ÷ 100 = 0.2
hope this helps you
Answer:
The answer is 54
Step-by-step explanation:
x^2+6x^3+2
When x=2 substitute into the above equation
2^2+6(2^3)+2
4+6(8)+2
4+48+2
=54
Therefore the final answer is 54
Here is a function rule that produces an output of 7 for an input of 1.6
f(x) = x + 5.4
when x = 1.6, f(x) = 1.6 + 5.4 = 7
