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3 years ago

Write an algebraic expression for this word expression. the difference of n and 9

Mathematics

1 answer:

storchak [24]3 years ago

6 0

N-9=14
that's just an example. what it equals to can be anything really

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Solve for x.

PSYCHO15rus [73]

The answer is the first option: 1) $x$ > the quantity $4$ times $b$ minus $9$ all over $a$

The explanation is shown below:

1. To solve this problem you must pply the following proccedure:

2. Move the term $4b$ to the left member. As the variable is negative, multiply the expression by $-1$ and change the direction of the sign:

$-ax+4b>9\\ (-1) -ax>9-b4 (-1)\\ x>\frac{ab-9}{a}$

6 0

3 years ago

4. Tikili wants to invest $3500 at her local bank. She will receive an interest rate of 5% compounded

alexandr402 [8]

Answer:

$3863.35 = 3500(1 + \frac{0.05}{2} )^{(2 \times 2)}$

Step-by-step explanation:

The formula for this equation is

$a = p(1 + \frac{r}{n} )^{(n \times t)}$

a is the final result

p is the starting amount (deposited)

r is the interest rate

n is the number of times it's compounded

t is the time

because it says compound annually and it's after 2 years both t and n equal 2. I rounded a for you, but if you don't need it rounded here it is: 3863.345117

Please double check me I may be wrong, this is my second time doing these type of questions

3 0

3 years ago

Find an explicit formula for the geometric sequence -40,-20,-10......

garik1379 [7]

Answer:

The explicit formula for the geometric sequence is $c(n) = -40\cdot \left(\frac{1}{2} \right)^{n-1}$ .

Step-by-step explanation:

By definition of geometric sequence, we should use the following expression:

$c(n) = c_{1}\cdot r^{n-1}$ , $n \ge 1$ (1)

Where:

$c_{1}$ - First term.

$r$ - Geometric rate.

$n$ - Position of the element within the series.

If we know that $c_{1} = -40$ and $r = \frac{1}{2}$ , then the explicit formula for the geometric sequence is:

$c(n) = -40\cdot \left(\frac{1}{2} \right)^{n-1}$

The explicit formula for the geometric sequence is $c(n) = -40\cdot \left(\frac{1}{2} \right)^{n-1}$ .

3 0

3 years ago

Emma bought a carpet for $40. Later that carpet was marked down by 20%. By how much has the value been decreased?

Gnoma [55]

By 8. 20 percent of 40 is 8. :)

5 0

3 years ago

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Maurice puts $25 in his savings account every month. use the course tools calculator to find how much money he will save in a ye

telo118 [61]

If he puts in $25 every month and there are 12 months in one year, just multiply 25 by 12 to find that Maurice will save $300 a year.

5 0

3 years ago

Read 2 more answers