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quester [9]
3 years ago
10

Brian has $30 in his piggy bank. He earns $10 a week at his job.

Mathematics
2 answers:
Vesna [10]3 years ago
6 0

Answer:

B. 2

Step-by-step explanation:

10w +30 = 20w +10,

30 - 10 = 20w - 10w,

20 = 10w,

so the answer is,

w = 2

sleet_krkn [62]3 years ago
3 0

Answer:

B. 2 weeks

Step-by-step explanation:

1st week

Brian will have $40

Sarah will have $30

2nd week

Brian will have $50

Sarah will have $50

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7 0
3 years ago
Solve the following equation:<br> 1-31 x 8 = x<br> X =
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=

−

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Step-by-step explanation:

4 0
2 years ago
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What intervals would you use to determine where<br> the function is positive and negative?
Igoryamba

Answer:

B.

Step-by-step explanation:

The function is positive when it is above the x-axis

The following x values are where the function has positive y coordinates:

(-2,0)

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The function is negative when it is below the x-axis

The following x values are where the function has negative y coordinates:

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4 0
3 years ago
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To begin with, let's establish the problem as the following:

5 + 7

An effective method to solve this problem would be to convert it into a visual representation in order to obtain a better understanding.

As attached in the diagram above, I have demonstrated the problem visually. The five red circles / dots represent the five in the problem whilst the 7 circles / dots represent the 7 in the problem. Now we must simply count each of the circles / dots to obtain the total number which would be our final answer.

We can also simply use our fingers on our hands to solve the problem by counting 5 on our fingers and then adding 7 or vice versa to obtain the final answer.

FINAL ANSWER:

Hence, through either of these two methods, we obtain the final answer to the problem as follows:

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Hope this helps! :)
Have a lovely day! <3

4 0
3 years ago
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