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Dennis_Churaev [7]
3 years ago
9

Solve the system of linear equations ​

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
8 0

Answer:

Infinitely many solutions.

Step-by-step explanation:

3x-3y=6

-6x+6y=-12

------------------

2(3x-3y)=2(6)

-6x+6y=-12

-------------------

6x-6y=12

-6x+6y=-12

--------------------

0=0

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Marcus wants to use a model to determine the difference
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We want to see how we can model the difference: -8 - 3 + 3

The correct option is D:

"add 3 positive counters and 3 negative counters"

We know that Marcus starts with 8 negative counters, corresponding to the first term in our difference.

Now, let's study the math of our expression.

-8 - 3 + 3

Remember that we can perform the operation in any order we want, so we can write this as:

-8 + (-3 + 3)

Notice that the thing inside the parentheses is equal to zero, so we have:

- 8 + (-3 + 3) = -8

So to not change the value, we add 3 and we subtract 3.

Now if we have 8 negative counters, and we want to add 3 positive counters and not change the value, then we also need to add 3 negative counters to "cancel" the 3 positive counters we added.

Then the correct option is D.

To learn more about Marcus refer to,

brainly.com/question/23140234

#SPJ1

8 0
1 year ago
The rockets scored 15 baskets out of 21 attempts. How many attempts will it take for the rockets to score 40 baskets?
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Work out the percentage change to 2 decimal places when a price of £198 is increased to £209.99.
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Answer:

The percentage change = 6.05%

Step-by-step explanation:

New value = £209.99

Old value = £198

Percentage change = [New Value - Old Value] / [Old Value] × 100

                                 = [209.99 - 198] / [198] × 100

                                 = [11.99] / [ 198] × 100

                                 = 0.06 × 100

                                 = 6.05%

Therefore, the percentage change = 6.05%

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3 years ago
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Answer:

£1,330.46

Hope this helps, mate!

Step-by-step explanation:

Hope this helps, mate! :)

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