Solve the formula for the area of a triangle A=\frac{1}{2}bh for the length of the base, b.
1 point
1
Question 2
2.
Álmos claims he can run at a speed of at least 20 \frac{\textrm{km}}{\textrm{hr}} for over 10 minutes straight! To test this, his friends want to set up a start and finish line that he must run between in 10 minutes or less. What equation gives the distance they should set for the race?
1 point
1
Question 3
3.
We can write that two ratios are equivalent to each other using an equation, as in \frac{a}{b}=\frac{c}{d}. Which of the following equations is equivalent to that statement?
2 points
2
Question 4
4.
The formula for calculating simple (non-compounded) interest is I=PRT, where I is the amount of interest, P is the "Principle" (the amount of money you earn or owe interest on), R is the rate of interest per time period, and T is the number of time periods.
A) Solve this formula for T, then
B) Find out how long a deposit has been earning interest if the amount of interest is $325, the rate of interest is 0.025 per month (often written as 2.5% per month), and the principle deposit was $2,000.00.
1 point
1
Question 5
5.
Sir Isaac Newton defined his own temperature scale wherein 0^\circ was the melting point of snow, and 33^\circ was definied to be the boiling point of water. We thus have the following conversion between degrees on the Newton scale^\circ N and degrees on the more modern Kelvin scale, ^\circ K .