All New SAT Math - No Calculator Resources
Example Questions
Example Question #2 : Solve Problems Leading To Two Linear Equations: Ccss.Math.Content.8.Ee.C.8c
Adult tickets to the zoo sell for ; child tickets sell for . On a given day, the zoo sold tickets and raised in admissions. How many adult tickets were sold?
Let be the number of adult tickets sold. Then the number of child tickets sold is .
The amount of money raised from adult tickets is ; the amount of money raised from child tickets is . The sum of these money amounts is , so the amount of money raised can be defined by the following equation:
To find the number of adult tickets sold, solve for :
adult tickets were sold.
Example Question #675 : Algebra
Solve the following story problem:
Jack and Aaron go to the sporting goods store. Jack buys a glove for and wiffle bats for each. Jack has left over. Aaron spends all his money on hats for each and jerseys. Aaron started with more than Jack. How much does one jersey cost?
Let's call "" the cost of one jersey (this is the value we want to find)
Let's call the amount of money Jack starts with ""
Let's call the amount of money Aaron starts with ""
We know Jack buys a glove for and bats for each, and then has left over after. Thus:
simplifying, so Jack started with
We know Aaron buys hats for each and jerseys (unknown cost "") and spends all his money.
The last important piece of information from the problem is Aaron starts with dollars more than Jack. So:
From before we know:
Plugging in:
so Aaron started with
Finally we plug into our original equation for A and solve for x:
Thus one jersey costs
Example Question #1 : Translating Words To Linear Equations
Read, but do not solve, the following problem:
Adult tickets to the zoo sell for $11; child tickets sell for $7. One day, 6,035 tickets were sold, resulting in $50,713 being raised. How many adult and child tickets were sold?
If and stand for the number of adult and child tickets, respectively, which of the following systems of equations can be used to answer this question?
6,035 total tickets were sold, and the total number of tickets is the sum of the adult and child tickets, .
Therefore, we can say .
The amount of money raised from adult tickets is $11 per ticket mutiplied by tickets, or dollars; similarly, dollars are raised from child tickets. Add these together to get the total amount of money raised:
These two equations form our system of equations.
Example Question #81 : New Sat Math Calculator
A blue train leaves San Francisco at 8AM going 80 miles per hour. At the same time, a green train leaves Los Angeles, 380 miles away, going 60 miles per hour. Assuming that they are headed towards each other, when will they meet, and about how far away will they be from San Francisco?
Around 2:45AM, about 200.15 miles away from San Francisco
Around 10:43AM, about 217.12 miles away from San Francisco
Around 3AM the next day, about 1,520 miles away from San Francisco
The two trains will never meet.
Around 10:43AM, about 217.12 miles away from San Francisco
This system can be solved a variety of ways, including graphing. To solve algebraically, write an equation for each of the different trains. We will use y to represent the distance from San Francisco, and x to represent the time since 8AM.
The blue train travels 80 miles per hour, so it adds 80 to the distance from San Francisco every hour. Algebraically, this can be written as .
The green train starts 380 miles away from San Francisco and subtracts distance every hour. This equation should be .
To figure out where these trains' paths will intersect, we can set both right sides equal to each other, since the left side of each is .
add to both sides
divide both sides by 140
Since we wrote the equation meaning time for , this means that the trains will cross paths after 2.714 hours have gone by. To figure out what time it will be then, figure out how many minutes are in 0.714 hours by multiplying . So the trains intersect after 2 hours and about 43 minutes, so at 10:43AM.
To figure out how far from San Francisco they are, figure out how many miles the blue train could have gone in 2.714 hours. In other words, plug 2.714 back into the equation , giving you an answer of .
Example Question #2092 : Psat Mathematics
How many are in
To solve this problem we can make proportions.
We know that and we can use as our unknown.
Next, we want to cross multiply and divide to isolate the on one side.
The will cancel and we are left with
Example Question #181 : Ratio And Proportion
How many are in
To solve this problem we can make proportions.
We know that and we can use as our unknown.
Next, we want to cross multiply and divide to isolate the on one side.
The will cancel and we are left with
Example Question #1 : Solving Word Problems With One Unit Conversion
A carpenter is making a model house and he buys of crown moulding to use as accent pieces. He needs of the moulding for the house. How many feet of the material does he need to finish the model?
We can solve this problem using ratios. There are in . We can write this relationship as the following ratio:
We know that the carpenter needs of material to finish the house. We can write this as a ratio using the variable to substitute the amount of feet.
Now, we can solve for by creating a proportion using our two ratios.
Cross multiply and solve for .
Simplify.
Divide both sides by .
Solve.
Reduce.
The carpenter needs of material.
Example Question #2 : Solving Word Problems With One Unit Conversions
A carpenter is making a model house and he buys of crown moulding to use as accent pieces. He needs of the moulding for the house. How many feet of the material does he need to finish the model?
We can solve this problem using ratios. There are in . We can write this relationship as the following ratio:
We know that the carpenter needs of material to finish the house. We can write this as a ratio using the variable to substitute the amount of feet.
Now, we can solve for by creating a proportion using our two ratios.
Cross multiply and solve for .
Simplify.
Divide both sides by .
Solve.
Reduce.
The carpenter needs of material.
Example Question #753 : Ssat Middle Level Quantitative (Math)
A carpenter is making a model house and he buys of crown moulding to use as accent pieces. He needs of the moulding for the house. How many feet of the material does he need to finish the model?
We can solve this problem using ratios. There are in . We can write this relationship as the following ratio:
We know that the carpenter needs of material to finish the house. We can write this as a ratio using the variable to substitute the amount of feet.
Now, we can solve for by creating a proportion using our two ratios.
Cross multiply and solve for .
Simplify.
Divide both sides by .
Solve.
Reduce.
The carpenter needs of material.
Example Question #2102 : Psat Mathematics
A carpenter is making a model house and he buys of crown moulding to use as accent pieces. He needs of the moulding for the house. How many feet of the material does he need to finish the model?
We can solve this problem using ratios. There are in . We can write this relationship as the following ratio:
We know that the carpenter needs of material to finish the house. We can write this as a ratio using the variable to substitute the amount of feet.
Now, we can solve for by creating a proportion using our two ratios.
Cross multiply and solve for .
Simplify.
Divide both sides by .
Solve.
Reduce.
The carpenter needs of material.