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  1. Radium emits (8.410¹⁰) ⋉ particle/gm/s and thus ... - Socratic

    Then, you have an emission rate of #8.4 × 10^10# α particles per second per day and helium formation at a rate of #1.69 × 10^"-4"# mL/day.

  2. Rebecca raised her hourly babysitting rate from $3.25 to $3.

    Mar 29, 2016 · To calculate a percentage increase you should use the equation: Input the old value, $3.25, and new value, $3.75 into the equation. 3.75− 3.25 3.25 ⋅ 100 = 15.38%

  3. Can someone help me answer this question about "Flat tax"? I …

    Oct 11, 2017 · You pay more money based on your income and the rate increases as your income increases. There are other tiers of rates but I've never made that much money. A flat …

  4. Question #b39ee - Socratic

    Explanation: Remember that the formula for finding the average rate of change between the two points is # (y_2-y_1)/ (x_2-x_1)# We can get our #y# coordinate by plugging the #x# values …

  5. How do you calculate electrochemical cell potential? - Socratic

    Warning! VERY long answer! You can calculate the cell potential for an electrochemical cell from the half-reactions and the operating conditions. > The first step is to determine the cell …

  6. Question #dabf4 - Socratic

    Every ammonia plant uses a different combination of conditions. Let's assume a plant operates at 200 bar and 450 °C. At this temperature, #K_text (p) = 4.51 × 10^"-5"#. Let's calculate the …

  7. A meal deal is marked down from $6,00 to $4.80. What is the rate …

    Nov 29, 2016 · The markdown is 20% To calculate any change as a percent you can use the same calculation. % " change " = "amount of change"/"original amount" xx 100% This can …

  8. A telephone costs $342 and is subject to a 7% sales tax ... - Socratic

    Jul 20, 2017 · See a solution process below: The formula to calculate the sales tax is: t = p * r Where: t is the amount of the sales tax, what we are solving for in this problem. p is the price …

  9. Site Map - Exponential Growth Questions and Videos | Socratic

    How do you calculate the percentage rate of starling population growth in Lower Fremont since 1962? The population of rabbits in East Fremont is 250 in September of 2004, and growing at …

  10. Site Map - Dilution Calculations Questions and Videos | Socratic

    What mass of this solution would be required to prepare 600.0 mL of a 2.80 M phosphoric acid solution? How can I calculate dilution concentration? How does dilution affect the pH of a …