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Leno4ka [110]
2 years ago
7

Evaluate the expression 6xy + 3x + y when x = 3 and y = 1.

Mathematics
2 answers:
RUDIKE [14]2 years ago
7 0

6(3)(1) + 3(3) + 1

= 18 +9 +1

= 28

i hope that this helped you hon ;)


svetoff [14.1K]2 years ago
3 0

The answer is 28

6(3)(1) + 3(3) + 1 = 28

Hope this helps

-AaronWiseIsBae

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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

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                                             x = 15

Conclusions

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

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