Answer:
5
Step-by-step explanation:
this is what I do, I see how many times 20 can go into 100, that is 5 times. and sense the mystery numbers 20% is 1, you can just leave it at 5. To double check your answer, count 1 5 times. 1 goes into 5 5 times, and 20 goes into 100 5 times.
Answer: 23 is a number.
Step-by-step explanation:
An algebraic expression is made up of terms consisting of variables (for example, n), a number (for example, 23) or a constant multiplied by variable or variables (for example, ax2 + bx + c).
Answer:
5.86
Step-by-step explanation:
Hint: substitute 2^x by say 't': t = 2^x, then you'll have an inequality with a second order polynomial (2/t-4*t<7--> ...). In the end something like t^2 + a*t+b > 0, for some values of a and b, find the roots and get the intervals where it is satisfied.
We have been given that the painting is 3 times as long as it is tall.The expression 
represents the perimeter of the painting, where x represents the length of the short side of the painting in feet.
To find the the amount of framing needed when short side of the painting measures 2.6 feet, we will substitute 
in our given expression.
We can simplify our expression as:
Therefore, a total of 20.8 feet of framing is needed.
