1 year = 52 weeks; multiply each side of the equation by 8 and you will see the inequality 8 years = 416 weeks.
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you take a ruler and you measure each side and you multiply each numbers of each side
No. You have written two quantities. They can't be equal to each other AND also UNequal to each other.
Solving inequalities is quite similar to solving equalities - you try to isolate the variable on one side. The main difference is that if you multiply (or divide) by a negative number, you have to invert the inequality. Here is an example: -2x + 3 > 11 Subtract 3 from each side: -2x > 8 Divide both sides by (-2) - note that this involves inverting the sign: x < -4 Inverting the inequality can be tricky if you have to multiply or divide by a variable expression. You may have to consider both cases - that the expression is positive, and that it is negative.
Unless it's a fancy graphing calculator, you don't. When solving an inequality, you need to solve it as an equality, remaining mindful of the proper direction of the inequality symbol after each step.
In solving an inequality you generally use the same methods as for solving an equation. The main difference is that when you multiply or divide each side by a negative, you have to switch the direction of the inequality sign. The solution to an equation is often a single value, but the solution to an inequality is usually an infinite set of numbers, such as x>3.
When you have a negative variable in an equation that you are trying to solve for, you multiply each side of the equation by -1. If it is an inequality such as <, you would flip the sign to > and vice versa.
1 year = 52 weeks; multiply each side of the equation by 8 and you will see the inequality 8 years = 416 weeks.
I don't see any numbers below.One method to solve this is to replace each of the numbers in the inequality, do the calculations, and then check whether the inequality is satisfied. Another method is to get the general solution for the inequality, then check with each of the numbers.
r <= 5.
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Mostly true.As with equations, you can add or subtract the same amount to each side of an inequality. You can also multiply or divide by any positive number. The only difference is that if you multiply or divide by a negative number then the direction of the inequality needs to be flipped.For example, if 2x < 8 (ie x < 4), then2x - 8 < 8 - 8or (2x)/4 < 8/4but -3*2x > -3*8
When you multiply both sides by a negative number the inequality must be flipped over. You do not do that when multiplying by a positive number.
Through signs of inequality Solve each inequality Graph the solution? 2(m-3)+7<21 4(n-2)-6>18 9(x+2)>9(-3)
you take a ruler and you measure each side and you multiply each numbers of each side
No. You have written two quantities. They can't be equal to each other AND also UNequal to each other.