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gregori [183]
2 years ago
15

Hello I need help with this math it’s negative fractions so -7 1/5 - (-2/5)

Mathematics
2 answers:
Mkey [24]2 years ago
8 0

Answer:

-36/5

- . 2/5-=+2/5

-36/5+2/5

34/5 or 6 4/5

jekas [21]2 years ago
4 0

Answer:

-6 4/5

Step-by-step explanation:

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SIZIF [17.4K]

Answer:

They will each have saved $70.

Jessica is saving at a faster rate than Raphael.

The rate at which Jessica is adding to her savings is $4 per week more than the rate at which Raphael is adding to his savings.

Step-by-step explanation:

The formula for Jessica’s savings is

y = 10x + 20

She is saving at the rate of $10/wk .

From Raphael’s table, he started with $40 and is saving at the rate of $6/wk.

The formula for Raphael’s savings is

y = 6x +40

When the two savings are equal

10x + 20 = 6x + 40     Subtract 20 from each side

       10x = 6x + 20     Subtract 6x from each side

        4x = 20              Divide each side by 4

          x = 5

Their savings will be equal after five weeks.

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After five weeks , Jessica will have saved

y = 10×5 + 20  

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y = $70

Raphael has also saved $70.

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Jessica is saving at a faster rate than Raphael.

She is saving at the rate of $10/wk, while he is saving at the rate of $6/wk.

The rate at which Jessica is adding to her savings is $4/wk more than the rate at which Raphael is adding to his savings.

The red line in the graph shows that Jessica starts with $20. After five weeks, she has caught up to Raphael, who also has $70 after five weeks.  

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Im sorry i don’t know this but you should try photomath, it might help!
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Step-by-step explanation: move all terms not containing w to the right side of the equation

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