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3 years ago

Help with this math question please

Mathematics

1 answer:

nalin [4]3 years ago

6 0

7 = ln(x + 6)
We first use the terms on both sides as exponents for e:
e^7 = e^ln(x + 6)
Since e^ln(a) = a,
e^7 = x + 6
x = e^7 - 6
Approximating using a calculator for e^7 gives us 1090.63.

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3 years ago

Jada's sister works in a furniture store.

Bingel [31]

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1) $16.35

2) 75%

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Step-by-step explanation:

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2 years ago

A dress which costs $180 is being sold at a discount of 10%. The amount of the discount is

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3 years ago

When salt and water are combined, they form a salt or saline solution. How much ml of water must be added to 150 mL of an 80% sa

Vinvika [58]

Answer:

We must add 400 ml of water.

Step-by-step explanation:

We can use the following equation:

$C_{i}V_{i}=C_{f}V_{f}$

Where:

C(i) is the initial concentration of the solution (80%)
C(f) is the final concentration of the solution (30%)
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Now, we just need to solve the equation for V(f).

$V_{f}=\frac{C_{i}V_{i}}{C_{f}}$

$V_{f}=\frac{80*150}{30}$

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Therefore, we must add 400 ml of water.

I hope it helps you!

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2 years ago