Sandra says that 4\7-1\3=3\4because all you have to do is subtract the numerators and subtract the denominators. convince sandra that she is wrong

The answer is

Step-by-step explanation:

Given that Sandra says that

Sandra do the above calculation by subtracting the numerators and subtracting the denominators. we have to convince that Sandra is wrong.

The method of above calculation is wrong. the correction calculation is done by taking the LCM of denominators so that denomination will become same and then we will subtract the denominator.

This is the correct method.

therefore, sandra is wrong.

people grow faster than other people.

step-by-step explanation:

should you really be posting this isn't math boi.

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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rauschg

rauschg · hand

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