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4 years ago

Enter numbers to write 0.000328

Mathematics

1 answer:

Makovka662 [10]4 years ago

7 0

Answer:

3.28 x 10^-4

Step-by-step explanation:

0.000328 = 3.28 x 10^-4

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I'm really not sure how to go about solving this algebraic equation, please help! .513 = (2x)^2 / (.05-x)

LiRa [457]

Let's set it up like this:
$0.513=\frac{\left(2x\right)^2}{\left(0.05-x\right)}$
Multiply both sides by $0.05-x$
$0.513\left(0.05-x\right)=\frac{\left(2x\right)^2}{0.05-x}\left(0.05-x\right)$
$0.513\left(0.05-x\right)=4x^2$
We are then going to use the distributive property. Since we also know that the opposite of an number that is squared is the square root, we can also apply that. We would be left with something like this:
$x=-\frac{0.513+\sqrt{0.673569}}{8},\:x=\frac{\sqrt{0.673569}-0.513}{8}$
The variable $x$ can be both positive or negative.
We have found successfully our answer.

Let me know if you have any questions regarding this problem!
Thanks!
-TetraFish

4 0

3 years ago

Solve the inequality, -3 < n -8

vesna_86 [32]

Add 8 on both sides in order to isolate n:

-3 + 8 < n - 8 + 8

5 < n

8 0

3 years ago

A woman earning $20 an hour gets a 15% raise. With her raise, how much will she earn after working 40 hours?

erastovalidia [21]

She will earn $920 after working 40 hours.

Step-by-step explanation:

Given,

Amount per hour = $20

Raise = 15%

Raise amount = 15% of Amount per hour

$Raise\ amount = \frac{15}{100}*20\\Raise\ amount= \frac{300}{100}\\Raise\ amount= \$3$

New amount per hour = Amount per hour + raise amount

New amount per hour = 20+3= $23

Total earning after working 40 hours = Amount per hour * 40

$Total\ earning=23*40\\Total\ earning= \$920$

She will earn $920 after working 40 hours.

Keywords: Raise, percentage

Learn more about percentages at:

#LearnwithBrainly

4 0

3 years ago

Pls help me!! Worth 50 points and will give brainliest

kolbaska11 [484]

Answer:

<h2>A) 2 years at 3% interest = $10,617.57</h2>

Step-by-step explanation:

loan amount (P) = $10,000

interest is compound monthly :

A = P (1 + r/n)^n*t

find:

which of these loan terms will have the lowest total cost?

A) 2 years at 3% interest

B) 3 years at 3% interest

C) 4 years at 3% interest

D) 5 years at 3% interest

solution:

plugin the values into the formula to get the accumulated monthly interest.

A. using 2 years at 3% interest

A = $10,000 ( 1 + 0.03 ) ¹² ˣ ²

= $10,617.57

B. using 3 years at 3% interest

A = $10,000 ( 1 + 0.03 ) ¹² ˣ ³

= $10,940.51

C. using 4 years at 3% interest

A = $10,000 ( 1 + 0.03 ) ¹² ˣ ⁴

= $11.273.28

D. using 5 years at 3% interest

A = $10,000 ( 1 + 0.03 ) ¹² ˣ ⁵

= $11,616.17

therefore, based on the above terms, option A which is $10,617.57

has the lowest accumulated monthly interest. (total cost)

3 0

4 years ago

Read 2 more answers

Tyler can shovel the driveway in 2 hours Dakota can complete the job in 90 minutes if they work together how long will it take

topjm [15]

One JOB = 1 and 2 hours = 120 min

Tyler Rate per minute: 1/120 (in 1 minute he performes 1/120 of the job)
Dakota Rate per minute: 1/90 (in 1 minute he performes 1/90 of the job)

Tyler's + Dakota's rate per 1 minute = 1/120 + 1/90 = 7/360 (Job/minutes)

7/360 of the job was performed in 1 minute
a complete JOB =1 to be performed in x minutes (Rule of three)

x = 1x1/(7/360) that equals to 360/7 and x (time of both) = 51 min 42

5 0

3 years ago