All ISEE Middle Level Math Resources
Example Questions
Example Question #91 : Algebraic Concepts
Gina can chop 2 carrots in a minute. Bob can chop 3 carrots in a minute. How long (in minutes) will it take them to chop 60 carrots, if they work together?
Given that Gina can chop 2 carrots in a minute, and that Bob can chop 3 carrots in a minute, they will be able to chop 5 carrots in a minute if they work together.
If there are 60 carrots, it will take 12 minutes for them to chop up all the carrots, because 60 divided by 5 is 12.
Therefore, 12 is the correct answer.
Example Question #92 : Algebraic Concepts
Which of the following numbers is divisible by 60?
Given that 36 is divisible by 6, it follows that 360 would be divisble by 60 (as both numbers are multiplied by 10). A multiple of 360, such as 3,600 would also be divisible by 60.
Given that none of the other answer choices listed are divisble by 60, the correct answer is 3,600.
Example Question #93 : Algebraic Concepts
Simplify the following expression:
The expression is already reduced.
When dividing by variables you must deal with the like variables first.
Since there are variables on the numerator and denominator, you would divide them together.
The constants will divide regularly and the variables will cancel out
.
The other variables are left alone so the final answer will just be
.
Example Question #94 : Variables
Simplify the following expression:
Simplify the following expression:
When we are dividing variables, we can simpligy by subtracting the exponent of the variable on bottom from the variable on the top.
So because t has an exponent of 4 on top and 2 on the bottom, the new exponent will be:
Do the same for our other two exponents (x and p) to get the following
Making our answer:
Example Question #95 : Variables
Reduce the expression:
Cannot be reduced
For this division problem, you must deal with the like terms.
You will divide the constants and then divide the variables.
and then
because when dividing exponents with common bases, you just subtract the exponents.
The variable remains unchanged and your answer is,
.
Example Question #94 : Algebraic Concepts
To solve
First, use the order of operations.
When dividing with variables and the coefficients are the same, subtract the exponents.
Example Question #95 : Algebraic Concepts
To solve, subtract the exponents
Example Question #96 : Algebraic Concepts
To solve subtract the exponents
Example Question #97 : Algebraic Concepts
The area (A) of a rectangle is square units. The length is units. What is the width of this rectangle?
units
units
units
units
units
The formula for the Area of a rectangle is:
A - length x width
Is this problem, you are given the amount of total area or A, which is square units, and you are given the measurement of the length, which is . In order to solve for the measurement of the width, divide. When dividing, exponents are subtracted.
units
Example Question #98 : Algebraic Concepts
To solve separate each part of the terms and divide. When dividing variables with exponents, subtract the exponents.