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3 years ago

Solve the equation for x. – 1/2x – 3 = 4

Mathematics

2 answers:

Nana76 [90]3 years ago

5 0

Answer:

x = -4

Step-by-step explanation:

Multiply both sides by 2. Move constant to the right-hand side and change the sign. Add the numbers. And change the signs on both sides of the equation.

zimovet [89]3 years ago

3 0

Answer: -14
Solving Steps:
-1/2x-3=4 - Multiply both sides
-x-6=8 - Move constant to the right
-x=14 - Calculate
x=-14 - Put the negative on the other side

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Priscilla invests $10,000 in an account that compounds interest continuously and earns 11%. How long will it take for her money

Shkiper50 [21]

Answer:

Step-by-step explanation:

When the interest compounds continuously, our formula is

$A(t)=Pe^{rt}$

If we start with 10000 and are looking for how long, t, it takes to double, we are looking for how long it will take for our account to have 2 times 10000. That's 20000. Therefore, our equation is

$20000=10000e^{.11t}$

Divide both sides by 10000 to get

$2=e^{.11t}$

Take the natural log of both sides to "undo" that e:

$ln(2)=ln(e^{.11t})$

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ln(2) = .11t and

$\frac{ln(2)}{.11}=t$ so

t = 6.3 years

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3 years ago

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150-100 = 50

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3 years ago

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2 years ago

5 times the sum of the digits of a two digit number is 9 less than the number formed by reversing its digits. If 4 times the val

Ganezh [65]

Answer:

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If three-tenths of the visitors were adults and there were 100 visitors , how many visitors were adults ?

Veseljchak [2.6K]

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