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bagirrra123 [75]
3 years ago
7

in a certain town, the sales tax rate is 4%. determine the total cost of an item with a sticker price of $19.95. round your answ

er to nearest cent.
Mathematics
1 answer:
Bess [88]3 years ago
8 0
The answer would be $20.75
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The answer is A.y32 because you need to multiple
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How far is the woman traveling if she is driving 25mph?
Degger [83]

Answer:

C.12.50

Step-by-step explanation:

25 mph is your rate. Whilst your time is half of an hour. 25 * .5 = 12.5.

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Consider the following rectangle with a perimeter of 38ft.<br> Find x<br> Answer in units of feet.
Lilit [14]

X = 8

18-(2x8) = 18 - 16 = 2

8+9=17

Perimeter = 2x width + 2x length

Length = 2x2 = 4

Width = 2x17 =34 34 + 4 = 38

5 0
3 years ago
Read 2 more answers
A 0.45-mm-wide slit is illuminated by light of wavelength 590 nm. What is the width (in mm) of the central maximum on a screen 1
Hitman42 [59]

Answer:

w = \frac{2(590x10^{-9}) (1.5m)}{0.45x10^{-3}}=3.93 x10^{-3} m

And if we convert this into mm we got:

w= 3.93 x10^{-3} m *\frac{1000mm}{1 m}= 3.93 mm

Step-by-step explanation:

For this case we have the following info givenL

\lambda = 590 nm = 590 x10^{-9}m represent the wavelength

s = 0.45 mm *\frac{1m}{1000 mm}= 0.45x10^{-3} m represent the width of the single slit

L = 1.5 m represent the longitude

And we want to find the maximum width of the central maximum in mm, so we can use the following formula:

w s = 2 \lambda L

And if we solve for w the width we got:

w = \frac{2\lambda L}{s}

And replacing we got:

w = \frac{2(590x10^{-9}) (1.5m)}{0.45x10^{-3}}=3.93 x10^{-3} m

And if we convert this into mm we got:

w= 3.93 x10^{-3} m *\frac{1000mm}{1 m}= 3.93 mm

6 0
3 years ago
A rectangular garden has a width that is twice the length. The garden perimeter is 48 meters. What are the dimensions of the gar
Helen [10]

Answer:Width  

= 10 meters

Length  

= 15 meters

Step-by-step explanation:

Given:

Width  = x

Length  = 2 x − 5

Perimeter  = 50

Perimeter = 2 × length + 2 × width

Substitute: 50 = 2 ( 2 x − 5 ) + 2 ( x )

Simplify: 50 = 4 x − 10 + 2 x 50 = 6 x − 10  60 = 6 x   = 10

Substitute (FINALLY)

Width: x = 10  

So width  = 10 meters

Length: 2 x − 5 = 2 ( 10 ) − 5  = 20 − 5 = 15

So length  = 15 meters

5 0
3 years ago
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