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2 years ago

David is going to invest $330 and leave it in an account for 20 years. Assuming the

Mathematics

1 answer:

Cerrena [4.2K]2 years ago

3 0

Answer:

$1255.

Step-by-step explanation:

Mark me brainlest!

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Which statement about 6x2 + 7x – 10 is true?

amm1812

Answer:

(x+2)

Step-by-step explanation:

factor out the equation and get

(x+2)(6x-5)

7 0

2 years ago

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A population of 550 rabbits is increasing by 7.5% each year. in about how many years will the population be over 1000?

Furkat [3]

I believe this would take the form of an exponential equation:

A = Ao (1 + r)^t

where A is final population, Ao is initial population, r is rate of growth and t is time

A / Ao = (1 + r)^t

log A / Ao = t log (1 + r)

t = (log A / Ao) / log (1 + r)

t = [log (1000 / 550)] / log (1.075)

t = 8.27 years

SO the answer is B) about 9 years

5 0

2 years ago

Brittany surveyed the students in three different Chemistry classes regarding the average number of hours of sleep they get each

aalyn [17]

Class B has the most consistant sleep because there is less of a difference between 6.87 and 3.65 than the other classes.

6 0

2 years ago

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An athlete signs a contract that guarantees a $ 9-million salary 6 yr from now. Assuming that money can be invested at 6.7% w

frozen [14]

Answer:

$6,020,826.711

Step-by-step explanation:

The computation of the present value of that year salary is shown below:

As we know that

Present value in case of continuous compounding, the formula is

$= \frac{Guaranteed\ amount}{e^{0.067 \times 6}}$

where,

The Guaranteed amount is $9,000,000

The Time period is 6 years

And, the interest rate is 6.7%

Now placing these values

So, the present value is

$= \frac{\$9,000,000}{e^{0.067 \times 6}}$

= $6,020,826.711

6 0

2 years ago

At the county fair, the operator of a game guesses a contestant’s weight. For each pound the operator’s guess differs from the c

BartSMP [9]

Answer: $| x - \frac{15}{3} | = 120$ or $\frac{1}{3}| 3 x - 15|= 120$ or $| 3x - 15| = 360$ or $| x - 5 | = 120$

Step-by-step explanation:

Since, According to the question,

For each pound the operator’s guess differs from the contestant’s weight, the contestant will receive $3.

And, If a contestant weighing x pounds received $15

Then the guessed weight of contestant = $| x - \frac{15}{3} |$

But, Again according to the question,

The guessed weight is 120 pounds,

Thus, $| x - \frac{15}{3}|= 120$

⇒ $\frac{1}{3}| 3 x - 15|= 120$

⇒ $| 3x - 15|= 3\times 120$ (by multiplying 3 on both sides)

⇒ $| 3x - 15|= 360$

⇒ $3| x - 5|= 360$

⇒ $| x - 5|= 120$ ( On dividing both sides by 3 )

4 0

2 years ago

Read 2 more answers