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polet [3.4K]
3 years ago
6

A one-minute advertisement on a local television station during prime time (8-10p.m.) costs the advertiser $12,800. To the neare

st cent, how much does the advertisement cost per second? Show your work using dimensional analysis.
Mathematics
1 answer:
bearhunter [10]3 years ago
6 0
To determine the cost per second can be calculated by converting the given unit in terms of second. The conversion factor that will be used is 1 minute is equal to 60 seconds. Also, use proper dimensional analysis as shown below.

      R = ($12,800 / minute) (1 minute / 60 seconds)
           R = $213.33/seconds

Therefore, one second of advertisement during prime time costs $213.33. 
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Drew invests $4000 at 6% for 5 years. How much interest does Drew earn? Remember the formula for simple interest is I=prt.
expeople1 [14]

Answer:

I = $1,200.00

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 6%/100 = 0.06 per year,

then, solving our equation

I = 4000 × 0.06 × 5 = 1200

I = $1,200.00

6 0
3 years ago
Skylar owns a trucking company. For every truck that goes out, Skylar must pay the driver $11 per hour of driving and also has a
jeyben [28]

Answer:

The set of needed equations is

h = 30 m

11 m +  3  h = 909  where

the driver drove for m hours.

h : distance covered in m hours

Step-by-step explanation:

Here, according to the question:

The per hour rate of driver  = $11

The gas maintenance expense = $3 per mile.

The total distance covered by drives is 30 miles per hour.

The total  expenses paid to driver  = $909

Now, let us assume the driver drove for m hours.

The average speed of driver was 30 miles / hour

⇒ Driver covers 30 miles in 1 hour

SO, distance covered in m hours  = h = m x 30 = 30 m

or, h = 30 m

So,according to the question, the total amount paid :

Charges of m hours driving + maintenance charges for h miles

= 11 m + 3( h)

or, 11 m +  3  h = $909

Hence the set of needed equations is

h = 30 m

11 m +  3  h = 909

4 0
3 years ago
Please help not to sure on this one thank you
belka [17]
The answer would be B. bc you have to divide 168/ 5.25

6 0
3 years ago
Write the equation in slope-intercept form, then find the slope and the y intercept. Finally draw the graph of the line. 9x+5y=2
Oksi-84 [34.3K]

Answer:

Check explanation.

Step-by-step explanation:

slope-intercept form: y=mx+b

9x+5y=23

5y=-9x+23

y=-9/5x+23/5

m=slope: -9/5

b=y-intercept: 23/5

4 0
3 years ago
Read 2 more answers
8x-9y=19 4x+y=-7 How Do I Do This Type Of Math
astraxan [27]
8x-9y=19
4x+y=-7
 Multiply all terms of the 2nd by (9)===>  36x + 9y= 63

add (36x  9y=  63) to the 1st ===> 44x+0y = -44 ===> x=-1
replace x by this value in any of the equation & you'll get y=-3
4 0
3 years ago
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