If 0.03 x = 70 then x = %3D %3D

Q: The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain…

A: Given,The half-life of Radium-226 is 1590 years. i.e., h=1590A sample contains 200 mg.…

Q: If there were originally 500 grams of carbon-14 originally, how much carbon-14 would remain after 10…

A: In each half life , amount becomes half of the previous one. It means that, after each half life the…

Q: The half-life of Radium-226 is 1590 years. If a sample contains 300 mg, how many mg will remain…

A: Half life = 1590 years Inititial amount of sample (a0) = 300 mg Final amount of sample (af) = ?

Q: A certain computer loses half of its value every two years. If the value of the computer after 3…

A:

Q: A radioactive substance has a half-life of 29 years. What percent remains 80 years after being to…

A: We will find the remains after 80 years in percentage.

Q: You have 128 grams of a radioactive kind of strontium. If its half-life is 51 days, how much will be…

A: ln e= 1 ln ab=b ln a

Q: The half-life of Radium-226 is 1590 years. If a sample contains 500mg, how many mg will remain after…

A:

Q: suppose the half-life of caffeine in the bloodstream of a healthy adult is 6 hours. If the person…

A: Given: initial quantity of caffeine C0=200 mgt=12 hrs (11 am to 11 pm)half life t12= ln 2K…

Q: A radioactive substance has a half-life of 64 hours. If 200 grams of the substance are initially…

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Q: The half-life of Radium-226 is 1590 years. If a sample contains 300 mg, how many mg will remain…

A:

Q: If $7000 is invested at 7% compounded continuously, what is the amount after 7 years? The amount…

A:

Q: The half-life of Radium-226 is 1590 years. If a sample contains 300 mg, how many mg will remain…

A:

Q: An element with mass 970 grams decays by 27.7% per minute. How much of the element is remaining…

A: Given that, The mass of the element is 970 grams, which decays by 27.7% per minute. To find: How…

Q: A hospital prepares a 200 mg supply of molybdenum-99 which has a half-life of 66 hours. How much…

A:

Q: The half-life of a certain substance is 3.6 days. How long will it take for 20 g of the substance to…

A:

Q: An isotope of cesium has a half life of 29 years. If 1300 grams of cesium disintegrates over a…

A:

Q: If $2500 is invested at 3% compounded monthly, find the amount that results after a period of 2…

A: Given : Invested amount : $ 2500  Rate : 3 %  compounded monthly  Time : 2 years

Q: The half-life of carbon-14 is about 5730 years. If 1 gram of carbon-14 is present in a sample, how…

A:

Q: You have 1,352 grams of a radioactive kind of neptunium. How much will be left after 130 minutes if…

A: We have to find

Q: IF 8G OF RADIOACTIVE SUBSTANCE ARE PRESENT INITIALLY AND 4 YR LATER ONLY 4G REMAIN HOW MUCH OF THE…

A:

Q: The APY for 6.5% compounded continuously is %. Give answer as a percent rounded to one decimal…

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Q: The population of Jefferson City is 95,000. Assuming a growth rate of 2.5% pee year, what will the…

A: Given that population of Jefferson city is P=95,000.  growth rate is R=2.5% per year we have to find…

Q: The half-life of radium-225 is approximately 14.9 days. How much of a 15 gram sample of radium-225…

A:

Q: if 8 g of a radioactive substance are present initially and 4 yr later only 4 g remain, how much of…

A:

Q: If money is worth 7% compounded continuously, find the equated time for paying a loan of P 200,050…

A: Given: Rate of interest, r = 7% Loan amount due in 2 years, A1 = P200,050 Loan amount due in 4…

Q: The half-life of radioactive radium (226Ra) is 1599 years. What percent of a present amount of…

A:

Q: help with question 3

A: First, we find the rate of change of the price over the 5 years So every year price is decreasing…

Q: A new car is purchased for $25,000 and over time it’s value depreciates by one half every 5.5 years.…

A: Given that initial value = $25000 The value depreciates by one half every 5.5 years So the…

Q: GB of d

A: Given, A family has a phone paying that gives 6 GB of data per month 15 days into a 30-day month.…

Q: If18 g of a radioactive substance are present initially and 4yr later only 9g​remain, how much of…

A:

Q: algebra

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Q: Assume a substance has a half-life of 11 years and the initial amount is 133 grams.How much remains…

A: The amount left after t years can be calculated as

Q: if the diameter of cross section of a wire is decreasing by 5% how much percent will be the length…

A:

Q: A toxic radioactive substance in the amount of 7 miligrams per square centimeters is detected in the…

A:

Q: Find the half-life (in hours) of a radioactive substance that is reduced by 5 percent in 15 hours.

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Q: The half-life of radium-225 is approximately 14.9 days. How much of a 15 gram sample of radium-225…

A:

Q: The​ half-life of radium is 1690 years. If 40 grams are present​ now, how much will be present in…

A:

Q: Find the half-life (in hours) of a radioactive substance that is reduced by 10 percent in 90 hours.

A: Half-life = 0.693/(Decay constant)

Q: A certain radioactive substance has a half-life of 38 hours. Find how long it takes for 90% of the…

A:

Q: The growth rate of a certain strain of bacteria is unknown, but assumed to be constant. When an…

A: Given that the bacteria is growing at a constant rate. Initially there were 1500 bacteria and after…

Q: The current population of a certain small town is 4,700 and is declining at a rate of 1.7% per year.…

A: The general equation for exponential decay is A = P(1 – r)t. Where, A is final population P is the…

Q: If $8000 is invested at 6% compounded continuously, what is the amount after 2 years? The amount…

A:

Q: After 25 years, 60% of a radioactive substance still remains in a 20 gram sample. What is the…

A: Half life of a radio active material is the time required to reduce the initial quantity to its…

Q: An element with mass 430 grams decays by 27.4% per minute. How much of the element is remaining…

A: We need to find the exponential function representing the decay of the element.

Q: if 25,000 is invested at 12%, How much will it be worth after 5 years if it is compounded annually?

A: Remember that, Compound interest (or compounding interest) is the interest on a loan or deposit…

Q: A radioactive substance has a half-life of 4 hours. How much of it is left after 12 hours?

A: Since, a radioactive substance has a half-life of 4 hours.Our aim is to calculate the amount of…

Q: The half-life of radioactive radium (226Ra) is 1599 years. What percent of a present amount of…

A:

Q: How much of a radioactive kind of tungsten will be left after 363 days if the half-life is 121 days…

A:

Q: The​ half-life of radium is 1690 years. If 40 grams are present​ now, how much will be present in…

A:

Q: A certain radioactive substance has a half-life of 38 hour. Find how long (in hours) it takes for…

A:

Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.