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Lena [83]
3 years ago
14

Can i get some help pls i don't know how to write this equation

Mathematics
1 answer:
lyudmila [28]3 years ago
3 0

Answer:  x = (log(y) /(400 log1.0065) or x = log(initial cost)/1.126

Step-by-step explanation:  Take the log of both sides of your equation:

log(y) = log(400)(1.0065)^x

log (y) = log 400 + log(1.0065)^x

Subtract log(400) from both sides:

log(y) - log 400 = xlog(1.0065)

Divide both sides by log(1.0065)

[log(y) - log(400)]/log(1.0065) = x

Now, if you want to know how many years it will take for the guitar to be worth $200, replace y with 200 and solve.

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If y varies inversely as x, and y = 10 when x = 20,<br> find x when y = 16.
Ipatiy [6.2K]

Answer:

12.5

Step-by-step explanation:

y varies inversely as x.

y = k/x

10 = k/20

200 = k

The constant proportion k is 200.

16 = 200/x

Cross multiply.

200 = 16x

200/16 = x

x = 12.5

5 0
3 years ago
Irrational number between 7.7 and 7.9
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In the expression a + 2b − 12c2, a, 2b, and −12c2 are examples of _____
Vaselesa [24]
Answer:
Terms

Explanation:
Any expression is formed of terms separated by addition or subtraction.
A term can be a number, a variable or the product of multiplying a number and a variable.
Now, the given expression is:
a + 2b + 12c^2
This expression has three terms all separated by addition. These terms are:
a : which is only a variable
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Hope this helps :)
8 0
3 years ago
Please help I don’t understand! Giving brainliest
Marrrta [24]

Answer:

b

Step-by-step explanation:

3 0
3 years ago
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