(x - 25)*4
x3 + 4x
You can write an expression with a variable in many different ways. First it all depends on what the word problem says. For Example : *Three times a number increased by four is less than eight. The answer would be 3x+4<8 or it could be written as 8>4+3x it will equal to the same amount. It doesn't matter what variable you use if it doesn't have an amount. Because all variables equal to 1, you can use any letter. REMEMBER EXPRESSION HAVE >,<, OR = . WHILE EQUATIONS HAVE ONLY = . Hope I helped (: . *Problem found by Fantastic Five #37 problem #2 2008 Revision Gunnells Publishing, LLC.
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y increased by 4 is written as: y + 4
4xz=16
(x - 25)*4
x3 + 4x
If you mean 2n+4, or 2n-4, that already is an algebraic expression. The idea might be to put it into words. 2n+4 is twice n, increased by 4. Notice you need a comma because if you write twice n increased by 4 this is 2(n+4)
You can write an expression with a variable in many different ways. First it all depends on what the word problem says. For Example : *Three times a number increased by four is less than eight. The answer would be 3x+4<8 or it could be written as 8>4+3x it will equal to the same amount. It doesn't matter what variable you use if it doesn't have an amount. Because all variables equal to 1, you can use any letter. REMEMBER EXPRESSION HAVE >,<, OR = . WHILE EQUATIONS HAVE ONLY = . Hope I helped (: . *Problem found by Fantastic Five #37 problem #2 2008 Revision Gunnells Publishing, LLC.
n/2 + 4
A variable is a letter that represents a number. An expression that contains at least one variable is called variable expression, also called algebraic expression. A variable expression has one or more terms. A term is a number, a variable, or a product of numbers and variables. For example,3(x^2)y + 2xy + x - 7 is a variable expression, where you have 4 terms.When working with variable expression, you often use the substitution principle:If a = b, then a may be replaced by b in any expression.The set of numbers that a variable may be represent is called replacement set, or domain, of the variable. To evaluate a variable expression, you replace each variable with one of its values and simplify the numerical expression that results.Example: Evaluate the expression 2x - 4y for x = 5 and y = -9.Solution:2x - 4y= 2(5) - 4(-9)= 10 + 36=46
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y increased by 4 is written as: y + 4
2x+4
An algebraic expression. 4 = the constant and coefficient term. d = the variable term.
n/84q