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Nina [5.8K]
3 years ago
8

You triple your account balance by making a deposit. Then you withdraw $28.50 from your bank account. Now your account is overdr

awn by $10.50. Write and solve an equation to find your original account balance before you made the deposit.
Mathematics
1 answer:
Crazy boy [7]3 years ago
8 0

Answer:

Your original account balance before you made the deposit is $6

Step-by-step explanation:

Let x = your original account balance.

You triple your account balance by making a deposit. This means

New account balance = 3 × x = 3x

Then you withdraw $28.50 from your bank account. This means that you have $(3x - 28.5) left.

Now your account is overdrawn by $10.50. This means you have withdrawn beyond what you have in your account. Your new account balance is -$10.5. Therefore,

3x - 28.5 = - 10.5

3x = -10.5 + 28.5 = 18

x = 18/3 = 6

Your original account balance before you made the deposit is $6

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Proportions in Triangles (5)
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Answer:

  3 1/3

Step-by-step explanation:

Right side segments are proportional to left side segments:

  5/6 = x/4

  x = 4·5/6 = 3 1/3 . . . . . multiply by 4

7 0
3 years ago
What is the slope of the point (1÷4,3÷2)and (-1,-3)​
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Rachel must store a few pieces of her furniture for six months. A storage unit costs $55 for the first month and $47.50 for the
shepuryov [24]

y=$47.50(5)+$55

y=$237.50+$55

y=$292.55

y=total

m(47.50+ amount increased by after the starting $55

b=$55; the start.


7 0
3 years ago
A plane is travelling at 180 metres per second. How many minutes will it take for the plane to travel 800km? Give your answer in
Pavel [41]

Answer:

79 minutes

Step-by-step explanation:

A plane is travelling at 180 meters per seconds

Convert to km/hr

180× 18/5

= 648 km/hr

Since 648 km equals 1 hour then the number of minutes required for the plane to travel 800 km is

= 1/648 × 800

= 1 hour 19 minutes

Conver the time to full minutes

60 minutes = 1 hour

= 60+19

= 79 minutes

Hence the minutes required for the plane to travel 800km is 79 minutes

6 0
3 years ago
Need help with finding out what X is?
Marianna [84]

Answer:


Step-by-step explanation:

x + 4 = 2x + 1

-x        -x

4 = 1x + 1

-1          -1

3 = 1x

--    --

1      1

3 = x

Check:

3 + 4 = 2(3) + 1

7 = 6 + 1

7 = 7

7 0
3 years ago
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