How long will it take 72 grams of magnesium-28 to decay into the following amounts? (a) 36 grams (b) 18 grams (c) 9 grams

Q: 9/16 of the people were well fed. 270 were well fed. How many total people? Round two decimal places

A: Topic - Linear algebra We are given, 9/16 of the people were well fed. 270 were well fed.

Q: A juice box measures 4 1/ 1/5 5 cm long, 10 cm high, and 5 % cm wide. What is the total amount of…

A:

Q: 14 Enter the value of n for the equation 5" = 511.53.

A: If a is any non-zero rational number and m, n be any intergers, then am × an = am+n

Q: what is 10/15 qs a decima

A: First of all, to write any fraction a/b in decimal form, we need to find their HCF and then divide…

Q: If 150 mL is removed from a bag which contains 500 mL of glucose 5% and replaced with 150 mL of…

A: Step 1: Calculate the amount of glucose in the initial solution.The initial solution has a volume of…

Q: The half-life of Palladium-100 is 4 days. After 12 days the sample has been reduced to 10…

A: Given: Half life of palladium-100(λ)=4days           time(t)=12days           Mass (A)=10 mgwe know…

Q: From your answer for B- You have written: " If the sugar content increased one unit then the…

A: Regression has two coefficients. They are slope and intercept. Slope is denoted as b and intercept…

Q: If  14g of a radioactive substance are present initially and  5yr later only  7.0g​ remain, how much…

A: We know rate of radioactive decay is proportional to the amount of substance present i.e. dNdt∝N

Q: what is the formula for converting gallons to pints?

A: From the given information it is needed to calculate the formula for converting gallons to pints.So,

Q: ecies of mouse commonly found in houses is normally distributed with a mear ndard deviation of 0.2…

A: Solution

Q: In a certain​ city, it was recorded that 16 2/7 inches of rain fell over a​ 24-hour period. How…

A: Given, 1627  inches of rain fell over 24 hours.

Q: how long will it take for the population to reach 140 grams

A:

Q: How many times more energy does a 450-nm blue photon have than a 656-nm red photon?  answer to three…

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Q: How many times more intense is an earthquake of magnitude 8.2 than an earthquake of magnitude 7.5?

A:

Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products. 

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.