Answer:
integers, rational numbers
Explanation:
Integers are any whole number (positive or negative). -5 is a whole number, not a fraction or decimal.
Rational numbers can be written in the fraction form a/b where a and b are both integers and b does not equal 0. -5 can be written as -5/1.
1) Make them into equations.
0.05x + 20 = 0
0.07x + 10 = 0
2) Equate the two.
0.05x + 20 = 0.07x + 10
0.02x = 10
x = 500
Answer:
172.5cm^3
Step-by-step explanation:
* = multiply or times
volume = length*width*height
Plug in the numbers: 11.5*2.5*6 = 172.5cm^3
Find the surface area of a cube by squaring the length of one side and multiplying the result by 6.
Example: The surface area of a cube with side length 3 is "6 x (3 x 3) = 54".