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What is a rule for solving x times negative 5 equals 10 with out using a model?
x*(-5) = 10 Divide both sides by 5: x*(-1) = 2 Multiply both sides by -1 and remember that (-1)*(-1) = +1 x*(+1) = -2 x = -2
How do you solve x times negative 5 divided by negative 5?
25
What two numbers can be multipyed to get -15?
Integers: 5 and -3 3 and -5 15 and -1 1 and -15 There are MANY other #s that can be multiplied to get -15, but those have fractions (i.e. 30 and -0.5) RULE TO MULTIPLY TO A NEGATIVE NUMBER: POSITIVE# x NEGATIVE# = NEGATIVE#
Write a quadratic equation having the given numbers as solutions negative 5 and negative 1?
(x + 5) (x + 1) = 0x2 + 6x + 5 = 0
What is the op-op property?
the op-op property stands for the opposite of opposites property. the rule tells you: an odd number of negative numbers multiplied give you a negative answer. an even number of negative numbers multiplied gives you a positive answer. this rule only applies to NEGATIVE numbers. for example: (-1)x(-1)x1x(-1)x(-1)x(-1)x(-1)x1x(-1)x(-1)x(-1) sounds pretty hard right? WRONG there are seven negative numbers. seven is an ODD number. so the answer is -1. if there was eight negative numbers the answer would be 1. hope this helps
How do you figure out positive and negative in math?
That is a very good question. Let me break it down by Multiplication, Division, Addition, and finally Subtraction.Multiplication:Negative x Positive = NegativeEx: -4 x 5 = -20Positive x Positive = PositiveEx: 5 x 4 = 20Negative x Negative = Positive.Ex: -5 x -4 = 20Division:Negative ÷ Positive = NegativeEx: -5 ÷ 5 = -1Positive ÷ Positive = PositiveEx: 5 ÷ 5 = 1Negative ÷ Negative = PositiveEx: -5 ÷ -5 = 1Addition:Positive + Positive = PositiveEx: 20 + 20 = 40Positive + Negative = Takes the sign of the greater number.Ex: 50 + -60 = -10Ex: 60 + -50 = 10Negative + Negative = NegativeEx: -50 + -20 = -70Subtraction:Positive - Positive = PositiveEx: 10 - 5 = 5Negative - Positive = NegativeEx: -7 - 1 = -8Negative - Negative = Takes the sign of the greater numberEx: -5 - (-4) = -1Ex: -6 - (-7) = 1Explanation: Remember in Multiplication a Negative x Negative = Positive? Well look at the signs in the last example. In -5 - (-4) the minus sign is being multiplied to the -4. So -1 x -4 = 4. Rewrite it. -5 + 4 = -1. In the second example the sign rule applies. -6 - (-7), Negative x Negative = Positive. So -1 x -7 = 7. Therefore 7 + (-6) = 1.Remember the ultimate algebra rule. Please Excuse My Dear Aunt Sally.ParenthesesExponentsMultiplicationDivisionAdditionSubtractionThis is called the Order of Operations.
What is negative 4 minus a negative 1?
-4 - (-1) = -3
How do you express negative thirty as the product of negative one and its prime factors?
-1 x 2 x 3 x 5
Does 1-x equal x-1?
2
What is 1 x 10 to the power of negative 5?
1*10^-5 = 1/100000 or 0.00001
Why do you get a positive answer if you divide a negative by a negative?
Why is -15 divided by -5 equal to 3 and not -3?Think about it this way:-15 = (-1 x 15) and -5 = (-1 x 5)Then the equation becomes:y = (-1 x 15)/(-1 x 5)which can be rewritten as:y = (-1/-1) x (15/5)We all know that a number divided by itself is equal to 1, and such is the case for -1, so:y = 1 x 15/5→ y = 3 which is positive.
Negative minus a negative?
Positive minus a negative = positive plus a positive two negatives make a positive 3- (-1) = 3 + 1 = 4 5- (-7) = 12
