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3 years ago

please help me what is the correct answer and why you think it is correct ! and why the others isn’t correct !

SAT

1 answer:

Gennadij [26K]3 years ago

7 0

Answer:

Well A and B are wrong because the passage clearly states otherwise. C is close but the ENTIRE passage isn't about the experiments. I say D is correct

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Mike and Andy are each reading the same book. Mike read 2/4 of the book on Tuesday and 1/3 of the book on Wednesday. Andy read 1

Mrac [35]

Answer:

Andy is incorrect

Explanation:

Mike and Andy both read $\frac{1}{2}$ of the entire book on Tuesday, and on Wednesday, Mike read $\frac{1}{3}$ of the book while Andy only read $\frac{1}{5}$ of it. Since the fraction $\frac{1}{3}$ is greater than $\frac{1}{5}$ , that means Mike read a greater amount of the book than Andy, so he is wrong. If you'd like further proof, Mike read $\frac{1}{2} + \frac{1}{3} = \frac{3}{6} + \frac{2}{6} = \frac{5}{6}$ of the book during Tuesday and Wednesday, while Andy read $\frac{1}{2} + \frac{1}{5} = \frac{5}{10} + \frac{2}{10} = \frac{7}{10}$ of the book during Tuesday and Wednesday. To compare the two fractions, you need to make sure they have the same denominator. The least common multiple of 6 and 10 is 30, so that's what the denominator is going to be when we compare the fractions. $\frac{5}{6} * \frac{5}{5} = \frac{25}{30}$ , $\frac{7}{10} * \frac{3}{3} = \frac{21}{30}$ . Since the fractions' denominators are the same, we can just compare the numerators. 25 is greater than 21, so Mike read more of the book on Tuesday and Wednesday than Andy did.

6 0

3 years ago

How many numbers less than 1000 are divisble by 3?

FinnZ [79.3K]

D because if we count the number that are divisible by 3 our last one before 1000 is 999 and 999/3 is 333 so there are 333 positive integers that are divisible by 3.

8 0

3 years ago

a student combined 45.3 ml of a 0.549 m calcium nitrate ca(no₃)₂ solution with 75.05 ml of a 1.321 m ca(no₃)₂ solution. calculat

Maksim231197 [3]

The concentration of the final solution of Ca(NO₃)₂ made by combining 45.3 mL of a 0.549 M Ca(NO₃)₂ solution with 75.05 mL of a 1.321 M Ca(NO₃)₂ solution is 1.03 M

We'll begin by calculating the number of mole of Ca(NO₃)₂ in each solution. This can be obtained as follow:

<h3>For solution 1:</h3>

Volume = 45.3 mL = 45.3 / 1000 = 0.0453 L

Molarity = 0.549 M

Mole = Molarity x Volume

Mole of Ca(NO₃)₂ = 0.549 × 0.0453

<h3>For solution 2:</h3>

Volume = 75.05 mL = 75.05 / 1000 = 0.07505 L

Molarity = 1.321 M

Mole = Molarity x Volume

Mole of Ca(NO₃)₂ = 1.321 × 0.07505

Next, we shall determine the total mole of Ca(NO₃)₂ in the final solution. This can be obtained as follow:

Mole of Ca(NO₃)₂ in solution 1 = 0.0249 mole

Mole of Ca(NO₃)₂ in solution 2 = 0.0991 mole

Total mole = 0.0249 + 0.0991

<h3>Total mole = 0.124 mole</h3>

Next, we shall determine the total volume of the final solution.

Volume of solution 1 = 0.0453 L

Volume of solution 2 = 0.07505 L

Total Volume = 0.0453 + 0.07505

<h3>Total Volume = 0.12035 L</h3>

Finally, we shall determine the concentration of the final solution. This can be obtained as follow:

Total Volume = 0.12035 L

Total mole = 0.124 mole

<h3>Concentration =?</h3>

Concentration = mole / Volume

Concentration = 0.124 / 0.12035

<h3>Concentration = 1.03 M</h3>

Therefore, the concentration of the final solution of Ca(NO₃)₂ is 1.03 M

Learn more: brainly.com/question/25469095

5 0

3 years ago

A: Explain right-of-way rules for navigating this traffic circle.

sesenic [268]

As a driver that is approaching an about, it is very important to respect the drivers that are already in the about.

<h3>What is an About?</h3>

An about is basically a junction that is circular in shape, in an about the vehicle at the left is given very high priority.

The driver of the SUV should wait for the oncoming vehicle to clear before he/she enter

Learn more about Round About here:

brainly.com/question/12811263

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5 0

2 years ago

under which governing system are the means of generating wealth owned by the government and not private individuals?

romanna [79]

Under socialism there is means of generating wealth owned by the government and not private individuals.

Given that in a government system there is means of generating wealth owned by the government and not private individuals.

We are required to tell the name of the government system in which there is means of generating wealth owned by the government and not private individuals.

The term or name of the government system is socialism.

Socialism is basically a left-wing to far-left economic philosophy and movement encompassing a range of economic systems characterized by the dominance of social ownership of the means of production as opposed to private ownership.

Learn more about socialism at brainly.com/question/14693002

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5 0

2 years ago