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3 years ago

Solve this equation for x. Round your answer to the nearest hundredth. 7 = ln(x + 3)

Mathematics

1 answer:

Nesterboy [21]3 years ago

6 0

E^7 = x +3
e^7 -3 = x

(Use Calc)

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Need some help with these problems!

LekaFEV [45]

Answer:

Step-by-step explanation:

<u>System of Linear Equations </u>

We have 3 unknown variables and 3 conditions between them. They form a set of 3 equations with 3 variables.

We have the following data, being

w = price of a sweatshirt

t = price of a T-shirt

h = price of a pair of shorts

19.

The first condition states the price of a sweatshirt is twice the price of a pair of shorts. We can write it as

$\displaystyle w=2h$

The second condition states the price of a T-shirt is $4 less than the price of a pair of shorts. We can write it as

$\displaystyle t=h-4$

The final condition states Brad purchased 3 sweatshirts, 2 pairs of shorts, and 5 T-shirts for $136, thus

$\displaystyle 3w+2h+5t=136$

This is the system of equations we need to solve for w,t,h

20.

To solve the system, we replace w in terms of h and t in terms of h. Those relations have been already written, so

$\displaystyle 3(2h)+2h+5(h-4)=136$

Operating

$\displaystyle 6h+2h+5h-20=136$

$\displaystyle 13h=156$

Solving for h

$\displaystyle h=12$

The other two variables are

$\displaystyle w=2h=24$

$\displaystyle t=12-4=8$

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3 years ago

3. To buy a car, Jessica borrowed $15,000 for 3

elena55 [62]

A)15000 x (9 : 100) x 3 = 4050
B) 15000 + 4050 = 19050

I hope it is correct ❤️

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2 years ago

Six times the quantity, x-2, is 24. Find the number, x.

pychu [463]

Answer:

x = 6

Step-by-step explanation:

Hope this helps!

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3 years ago

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3241004551 [841]

Answer:

$100.4

Step-by-step explanation:

Compound Interest Formula:

A = P $($ 1 + $\frac{r}{100}$ $)^{t}$

=> A = 100 x ( 1 + $\frac{0.4}{100}$ )^1 = 100.4 (If they asked ... interest rate ... per year, if not then depends - most likely to be days and therefore you will need to change 1 year = 365 days and you will also need to change 1 in the formula above to 365, then you will get the right ans)

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3 years ago

A metalsmith is mixing two molten metals, each containing different percentages of silver. The table shows the amount of each mo

Bess [88]

Answer:

(15)(0.75) and 0.7(15 – x) + 0.9x

Step-by-step explanation:

I did that assignment.

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3 years ago

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Solve this equation for x. Round your answer to the nearest hundredth. 7 = ln(x + 3)​

Solve this equation for x. Round your answer to the nearest hundredth. 7 = ln(x + 3)