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The sum of two numbers is 70 the larger number is 4 more than twice the smaller number?
Call the large number L and the small number S.L + S = 70L = 4 + 2SSubstitute the value of L in the second equation into the first equation to get:4 + 3S = 703S = 66S = 22Plugging 22 in for S (in either equation) gives:L = 48
What is .323232 as a fraction?
You solve this as follows. You call your number "x", and write:x = .323232... (equation 1) Then you multiply this equation by 100 (a one, followed by two zeros - this is because the length of the period is 2), and get: 100x = 32.323232... (equation 2) Now you can subtract equation 1 from equation 2, and solve for "x". This will give you "x" as a fraction.
What is A number sentence stating that two amounts are equal?
An Equation is a number sentence stating that two amounts are equal
How is the multiplication or division property of equality used in the elimination method and are the properties always needed?
If you multiply or divide an equation by any non-zero number, the two sides of the equation remain equal. This property is almost always needed for solving equations in which the variables have coefficients other than 1.
What is a number sentence that shows that two quantities are equal?
equation
