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3 years ago

6

On eight book shelves there are 44 books per shelf. How many books are there altogether? If 1/4 of these books are novels, how m

any novels would there be?

1 answer:

solmaris [256]3 years ago

6 0

<span>281.6.................................if my calculations are right wich the are. all the time</span>

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Solve |p + 2| = 10Solve |p + 2| = 10<br><br> {-12}<br> {-8, 8}<br> {-12, 8}

valentinak56 [21]

By definition, we have

$|p+2| = \begin{cases} p+2 &\text{ if } p+2 \geq 0 \\-p-2 &\text{ if } p+2 < 0 \end{cases}$

So, we have to solve two different equations, depending of the possible range for the variable. We have to remember about these ranges when we decide to accept or discard the solutions:

Suppose that $p+2\geq 0 \iff p \geq -2$

In this case, the absolute value doesn't do anything: the equation is

$p+2 = 10 \iff p = 10-2 = 8$

We are supposing $p \geq -2$ , so we can accept this solution.

Now, suppose that $p+2 < 0 \iff p < -2$ . Now the sign of the expression is flipped by the absolute value, and the equation becomes

$-p-2 = 10 \iff -p = 12 \iff p = -12$

Again, the solution is coherent with the assumption, so we can accept this value as well.

3 0

3 years ago

a company borrowed 25,000 and was charges 3.5% and was charged 2,625 in interet...how long was it before the company repaid the

Sladkaya [172]

We'll have to assume that interest is charged annually.

interest = i = p*r*t, where p is the initial amount ($25000), r is the annual interest rate as a decimal fraction, and t is the length of time, in years.

Then $2625 = $25000*0.035*t. Solve for t:

$2625
------------ = 0.035t = 0.105. Dividing both sides by 0.035, we get
$25000

t = 3 years (answer)

7 0

3 years ago

At its highest point, the elevation of a county is 5,764 feet above sea level. At its lowest point, the elevation of the count

Feliz [49]

Answer:

$Difference = 5757\ feet$

Step-by-step explanation:

Given

$Highest\ Point = 5764\ feet$

$Lowest\ Point = 7\ feet$

Required

Determine the difference between the points

The difference is calculated as follows:

$Difference = Highest - Lowest$

$Difference = 5764\ feet - 7\ feet$

$Difference = 5757\ feet$

8 0

3 years ago

Perform the operation. enter your answer as in scientific notation<br><br><br> 9×10²-5.6×10²

algol [13]

The answer is 340, not super good at math so dont know what scientific notation is but there you go

6 0

3 years ago

Write the following phrase as a variable expression. Use x to represent "a number".

mojhsa [17]

Sum means add, a number means x, and four means, uh, 4...

x+4. is what you're looking for

3 0

3 years ago