Reteach to Build
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Operations that undo each other, like addition...
Mathematics, 09.03.2020 02:24 SithLeo
Reteach to Build
Understanding
4-3
Operations that undo each other, like addition and subtraction, have an
inverse relationship.
To solve an equation, use inverse operations.
If a number is added to the variable, subtract it from both sides.
If a number is subtracted from the variable, add it to both sides.
1. What operation is being used in the equation? x + 15 = 22
Answers: 3
Mathematics, 21.06.2019 19:00
How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)
Answers: 1
Mathematics, 21.06.2019 19:30
If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m โ 1) : (2n โ 1).
Answers: 1
Mathematics, 21.06.2019 20:50
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
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