Divide 297 into three parts which are in the ratio 5 : 13 :15​

45:117:135

Step-by-step explanation:

We can solve this by turning each part into a fraction of the whole and multiply this by 297. To do this we first add the numbers in the ratio together to find out how many total divisions we have. 5+13+15 = 33

Let's start with 5. The amount in the 5 part of the ratio will be 5/33 so we can just multiply this fraction by 297 and it will give us the number.

5/33 x 297 = 45

We can then repeat this process with the other two parts:

13/33 x 297 = 117

15/33 x 297 = 135

Therefore our three parts are:

45:117:135

Hope this helped!

y=x+9

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step-by-step explanation:

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

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