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timama [110]
2 years ago
11

Find EF in parallelogram CDEF.

Mathematics
1 answer:
Ne4ueva [31]2 years ago
6 0

Answer:

Step-by-step explanation:

EF = CD

FC = DE               These equal lines are properties of a parallelogram.

2y = 3y - 17          Add 17 to both sides

2y + 17 = 3y         Subtract 2y from both sides.

2y-2y+17 =3y-2y

y = 17

CD = y + 43

CD = 17+43

CD = 60

Since CD = 60 then FE = 60

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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
Evgesh-ka [11]

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

5 0
3 years ago
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Make 10 equations for 50,000
Kruka [31]

Answer:

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Place a dot on the origin.
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3 years ago
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Answer:

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