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Step 1. Let x be the number of 30 cents stamps.
Step 2. Let x-2 be the number of 20 cents stamps.
Step 3. Let 30x be the cost of buying x number of 30 cents stamps
Step 4. Let 20(x-2) be the cost of buying x-2 number of 20 cents stamps.
Step 5. 30x+20(x-2)=360 cents is the total cost of buying stamps.
Step 6. The following steps will solve the equation in Step 5:
What else can I help you with?
How do you find a problem number in a equation?
You solve the equation.
If I have 14 sponges and there are s boxes write an equation that shows how many packages I have.?
It is not possible to answer the question because there is no relation between the sponges and boxes, the sponges and packages and boxes and packages.
25 plus what equals 180?
First, let's create an equation for your problem: 25 + x =180 "X represents the unknown number in the problem." Subtract 25 from both sides of the equation: x = 155 Hope this helps!
How do you solve the math problem What is my number?
use one step equation.
How do you create your phone number into a math problem?
96703079
What is the term used for the answer to a subtraction problem?
The term used for the answer to a subtraction problem is "difference." In a subtraction equation, the difference is the result obtained when one number is subtracted from another. For example, in the equation 8 - 3 = 5, the number 5 is the difference.
Given a number. square it. then subtract the sum of twice the number and 4 The result is zero. Find the number?
You want to create an equation for this. The equation should look like this: x^2 - 2x + 4 = 0 Use the quadratic equation to solve it.
What is a number story that can be solved with division?
A number story is is a math problem in a couple sentences. For you to be able to answer the equation you have to use division
What does a variable do in a math problem?
Variables in a math problem vary or change. If in an equation, different variables change values depending on constants, evanuations, etc. For example: in y = x + 2, y can be any number as long as x is that number plus two. The varibles in this equation change value but are defined by the equation.
How solve this problem 32.5100?
32.5100 has excactly the same value as 32.51
What is the first step in solving a problem in stoichiometry?
Balance the number of atoms for each element on both sides of a chemical equation
Write an equation to solve this problem what number is 25 percent of 4?
4 x .25 = 1
