Answer:
$180
Step-by-step explanation:
Since the cost of the telescope with the 30% discount is $126 then $126 is 70% of the original price. Remember 100-30=70. To find the original price set up a proportion with these values:
Solve for the original price by cross multiplying numerator with denominator.
x(70) = 126(100)
70x = 12600
x= $180
Answer:
Greater than 3
Step-by-step explanation:
Logarithms explain the relationship between exponents.
Think of them as such, except they got their bases and exponents switched.
In this logarithm:
basically says 2 to the power of <em>what</em> gets you to 10.
Now let's experiment: 2^2=4, 2^3=8. 2^4=16.
Wait, we already crossed 10. Now we know that log2(10) must be in between 3 and 4. We don't need to find the exact value, because thats not what the question asked.
It's between 3 and 4, so it has to be greater than 3 but less than 4. Thee is your answer!
Have a nice day! :)