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klasskru [66]
3 years ago
10

Heather opens a bank account with $125. Each week, starting the following week, she deposits $25 into her account.

Mathematics
2 answers:
Rufina [12.5K]3 years ago
7 0
Total money in account=125+25n
ICE Princess25 [194]3 years ago
4 0

Answer:

125+25n

Step-by-step explanation:

We are given that

Heather opens a bank account with=$125

Each week she deposited money  into her account=$25

We have to find the explicit rule  for amount of money which has Heather after n weeks.

Heather has money after 1 week=125+25=$150

Heather has money after 2 week=125+2(25)=$175

Heather has money after 3 weeks=125+3(25)=$200

:

:

:

Heather has money after n weeks=125+25(n)

Hence, the explicit rule for amount of money which has Heather after n weeks is given by

125+25n

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If the integers have the same absolute value ... they're the same number
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If the integers have different absolute values ... they're different numbers with different
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Examples:

==>   (plus) 92 added to (negative) 91
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3 years ago
Describe the error in the work shown below.
Katena32 [7]

Answer:

the bottom equation should be 18+30=3(6+10)

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5 0
3 years ago
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bagirrra123 [75]
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6 0
3 years ago
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shtirl [24]

Answer:

x = -122/13 OR 9.3846

Step-by-step explanation:

First, take a look at the second equation. Add 8x to the other side.

-7y= 8x -18

Then, divide by -7 to get a regular "y=" equation.

y= 8/7x -18/7

Move on the the first equation. Let's get "y" by itself. Add 3x to the other side.

y= 3x +15

Considering both equations are equal to Y, set them equal ( except the "y" part )

8/7x - 18/7 = 3x + 15

Multiply all by seven so that there are no fractions.

8x - 18 = 21x + 105

Subtract 8x from both sides.

-17 = 13x + 105

Subtract 105 from both sides.

-122 = 13x

Divide by 13 on both sides.

x = 9.3846

Or if you don't want decimals, just say x = -122/13

Quick Note: I made a mistake. I had looked at the second equation at -18. The answer is incorrect but the method of solving is correct. Also, make sure to plug in the value of x to get Y.

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