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djyliett [7]
4 years ago
5

Plz help me Plzzzzzz

Mathematics
1 answer:
Arlecino [84]4 years ago
8 0
Pretty sure its 12...but then again i may be wrong
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12.5x + 4 = 7x + 37 solve for x
natulia [17]

Answer:

x = 6

Step-by-step explanation:

12.5x + 4 = 7x + 37

-7x             -7x

5.5x + 4 = 37

        - 4   - 4

5.5x = 33

x = 6

If this answer is correct, please make me Brainliest!

7 0
4 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST Suppose that is $1200 initially invested in an account at a fixed interest rate, compounded continuously.
lbvjy [14]
<h3>Answer:  2.93</h3>

Note: The percent sign is already taken care of.

=====================================================

Explanation:

The continuously compounded interest formula is

A = Pe^{rt}\\\\

where,

  • A = 1431 = account balance t years into the future
  • P = 1200 = deposit
  • e = special constant roughly equal to 2.718
  • r = unknown interest rate and what we want to find
  • t = 6 years

Since the unknown variable r is in the exponent, we'll need logs to solve it. A handy phrase is "if the exponent is in the trees, log it down to find it". By "log it down" I mean in terms of lumber, and not a journal.

We could use any base logarithm, but it's handy to use the special base 'e' log. This is the natural logarithm abbreviated as Ln.

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

Solving for r involves these steps

A = Pe^{rt}\\\\1431 = 1200*e^{r*6}\\\\e^{6r} = 1431/1200\\\\e^{6r} = 1.1925\\\\6r = \text{Ln}(1.1925)\\\\r = \frac{1}{6}*\text{Ln}(1.1925)\\\\r \approx 0.02934199063006\\\\r \approx 0.0293\\\\

Move the decimal over 2 spots to the right to convert 0.0293 to 2.93%

This is the same as multiplying by 100.

5 0
2 years ago
What is the slope of 12,-10 and 15,-8
Ber [7]

Answer:

2/3

Step-by-step explanation:

To find the slope, we use the formula

m = ( y2-y1)/(x2-x1)

    = ( -8 - -10)/( 15 -12)

    = ( -8+10)/( 15-12)

    = 2/3

7 0
3 years ago
Read 2 more answers
At the beach the ratio of green towels to yellow towels is 2 : 5. What is the ratio of green towels to total towels?
liberstina [14]

Answer:

2:7

Step-by-step explanation:

Add 2+5=7 which is the total amount of towels

And as before 2 are green so it would be 2:7

6 0
3 years ago
B) For V = Pi r squared , find V when r = 12.5 and h = 8
Luden [163]

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5 0
3 years ago
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