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Irina18 [472]
3 years ago
11

Tell me that answer for the question

Mathematics
2 answers:
pantera1 [17]3 years ago
8 0

Answer:

Width of the rectangle is 15cm

Step-by-step explanation:

If 64 is the perimeter and 17 is one side of the rectangle, then the opposite side must be 17 too, that leaves two sides. 64-17-17= 30. 30 divided by 2 = 15. 15+15+17+17=64 which is the perimeter, so you know your answer of 15 is correct.

artcher [175]3 years ago
6 0

Answer:

15cm

Step-by-step explanation:

17+17=34

64-34=30

30 divided by two is 15

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Oliver has 3 times as many rocks in his collection as Katie. Then Oliver collected 75 more rocks and Katie collected 105 more ro
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Answer:

The answer to your question is Katie had 15 rocks and Oliver 45 rocks.

Step-by-step explanation:

Conditions

Katie has x amount of rocks

Oliver has 3x amount of rocks

The final amount of rocks

                                    Oliver = 3x + 75

                                     Katie = x + 105

Now, they have the same amount of rocks, then we can equal both equations

                                   3x + 75 = x + 105

Solve for x

                                     3x - x = 105 - 75

                                           2x = 30

                                             x = 30/2

                                             x = 15

Conclusions

At first Katie had 15 rocks and Oliver had 3(15) = 45 rocks

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Step-by-step explanation:

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