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3 years ago

5

Sales tax on an item is directly proportional to the cost of the item purchased. If the tax on a 600 item is 36, what is the sal

es tax on a 950 item?

1 answer:

sdas [7]3 years ago

6 0

The sales tax $950 item would be $57. Hope this helps!

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A children's roller coaster ride travels along 3,300 feet of track at an average rate of 15

Olenka [21]

Answer:

150 seconds

Step-by-step explanation:

Remember that

$1\ mile=5,280\ feet$

To convert miles to feet multiply by 5,280

$1\ hour=3,600\ seconds$

To convert hours to seconds, multiply by 3,600

step 1

Convert the average rate of miles per hour to feet per second

$15\frac{mi}{h}=15(\frac{5,280}{3,600})=22\frac{ft}{sec}$

step 2

Find out how many seconds does the ride take to travel this length of track

we know that

The length of the track is 3,300 ft

so

Divide the total length of the track by the speed

$\frac{3,300}{22}= 150\ sec$

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3 years ago

The phone company Ringular has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount of mon

ivanzaharov [21]

Answer:

The slope is $0.35/min and it gives the cost per minute of the phone used.

Step-by-step explanation:

We can model this situation with a linear equation of the form

$y =mx+b$

where $y$ is monthly cost, $x$ is the number of minutes, $b$ is the flat monthly fee, and $m$ is the slope of the equation, or in our case, the amount of money charged per minute.

The slope $m$ is

$m= \dfrac{\$372.5-\$131}{990min-300min}$

$m = \$0.35/min$ ,

in other words, the phone company charges $0.5 per minute.

With the slope in hand, the linear equation becomes

$y =0.35x+b$ ,

and we can find the monthly fee $b$ from that fact that for 300 minutes the cost is $131:

$\$131 = 0.35(300min) +b$

$b = \%26$ .

Therefore,

$y = 0.35x+26$

where the slope if the equation give the cost per minute of the phone used.

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3 years ago

For the linear function f(x) = 7x - 4, find the range of f(x) at x = -2,0, and 2.

kenny6666 [7]

Answer:

(-2, -18) and (2, 10)

Step-by-step explanation:

the answer is -18 and 10

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3 years ago

HALP PLEASE NEED HALP, ASAP??

andre [41]

Answer:

5

Step-by-step explanation:

since -4 *-2 = 8 and -8+8=0

0*-2=0

0+5=5

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3 years ago

Consider the equation 4+2(5x-8) = ax +b.

vlada-n [284]

Answer:

a = 10, b = -12

Step-by-step explanation:

4+2(5x-8) = ax +b

4 + 10x - 16 = ax + b

10x - 12 = ax + b

Infinitely many solutions when:

a = 10

b = -12

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3 years ago

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