New SAT Math - No Calculator : New SAT

Study concepts, example questions & explanations for New SAT Math - No Calculator

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Example Questions

Example Question #1 : How To Add Fractions

Jesse has a large movie collection containing X movies. 1/3 of his movies are action movies, 3/5 of the remainder are comedies, and the rest are historical movies. How many historical movies does Jesse own?

Possible Answers:

(4/15)*X

(2/5)*X

(11/15)*X

(7/12)*X

(3/9)*X

Correct answer:

(4/15)*X

Explanation:

1/3 of the movies are action movies. 3/5 of 2/3 of the movies are comedies, or (3/5)*(2/3), or 6/15. Combining the comedies and the action movies (1/3 or 5/15), we get 11/15 of the movies being either action or comedy. Thus, 4/15 of the movies remain and all of them have to be historical.

Example Question #21 : How To Evaluate A Fraction

In a sample of  students,  of them liked baseball. If there are  students in the entire school, how many students are likely to like baseball? 

Possible Answers:

Correct answer:

Explanation:

To answer this question, we need to convert  to a decimal. . Now we multiply  by .

Example Question #281 : New Sat

If Billy runs at a pace of , how long will it take billy to run ?

Possible Answers:

Correct answer:

Explanation:

In order to solve this, we need to set up an equation. , where  is time. All we need to do is divide by  on each side.

Example Question #282 : New Sat

Rocket  is launched from the ground at , and Rocket  is launched  off the ground at . At what time will Rocket  and Rocket  cross path's?

Possible Answers:

Correct answer:

Explanation:

First we need to create equations that represent the path's of the Rocket's.

For Rocket , the equation is

For Rocket , the equation is

In order to solve for the time the Rocket's cross, we need to set the equations equal to each other.

Now solve for 

 

 

Example Question #143 : Probability

A poll was taken from a random collection of  people, they were asked whether they approve or disapprove GMO's. 

 

 

 

Did GMO's have a higher approval rate in September or October?

Possible Answers:

October

September

Correct answer:

October

Explanation:

To figure out which month had a higher approval rate, we need to divide the approve number by the total number of people.

From this, we can determine that October had the highest approval rate.

Example Question #283 : New Sat

Screen shot 2016 02 11 at 12.33.27 pm

Calculate the slope of the line.

Possible Answers:

Correct answer:

Explanation:

In order to solve for the slope, we need to recall how to find the slope of a line. , where  are points on the line.

So we will pick , and .

Example Question #284 : New Sat

Screen shot 2016 02 11 at 1.26.48 pm

Determine the mode of the Dot Plot.

Possible Answers:

Correct answer:

Explanation:

To determine the mode, we need to count how many diamonds are on each number. The mode is the most frequently occurring number. 

Since  has a frequency of , it is the mode.

Example Question #62 : Arithmetic Mean

Screen shot 2016 02 11 at 1.26.48 pm

Calculate the mean from the above dot plot.

Possible Answers:

Correct answer:

Explanation:

To calculate the mean, we need to sum up every individual entry and divide it by the total number of entries. This looks like , where  is the total number of entries and  are the individual entries.

Here is the calculation of the mean,

 

 

 

Example Question #285 : New Sat

If a function has x-intercepts at , and at , what is the equation?

Possible Answers:

Correct answer:

Explanation:

Since we are given the functions x-intercepts, we can write the equation as , now we need to use FOIL.

Start with .

Now we do

 

Example Question #286 : New Sat

 

What equation best represents the following table?

Possible Answers:

Correct answer:

Explanation:

The first step is to find the common ratio amongst the data. 

 

We can that the common ratio is .

Now we need to set up an equation that will give an answer for any time.

We can set up an exponential decay model, the general equation is,

, where  is the starting amount,  is the common ratio and  is time.

After plugging our numbers in, we get

 

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