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lubasha [3.4K]
3 years ago
12

Ashlee purchases gifts for three friends. She chooses a book for $12.80 and then finds two identical necklaces. Her budget is is

$48.00 before tax. What is the maximum she can spend on each necklace?
Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
8 0

Answer: $17.60

Step-by-step explanation:

48.00-12.80=35.2.

35.2/2

17.60

Then divide by 2 to get the maximum you could spend on each.

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An object falls freely in a straight line and experiences air resistance proportional to its? speed; this means its acceleration
KiRa [710]

Answer:

t = 1.068 s

Step-by-step explanation:

given,

a(t) =- k v(t)

speed of the object decreases from 800 ft/s to 700 ft/s

distance = 1400 ft

time for deceleration = ?

a(t) =- k v(t)

\dfrac{dv}{dt}= - kv

\dfrac{dv}{v}= - kdt

integrating both side

\int_{800}^{700}\dfrac{dv}{v}= - k\int dt

ln(\dfrac{7}{8})=-kt

t = -\dfrac{1}{k}ln(\dfrac{7}{8})..........(1)

since,

v = v_1e^{-kt}

\dfrac{ds}{dt} = 800e^{-kt}

\int ds= 800\int_0^t e^{-kt}dt

1400= -\dfrac{800}{k}[e^{-kt}-e^0]

from equation 1

k= -\dfrac{8}{14}[\dfrac{7}{8}-1]

k= \dfrac{1}{8}

putting value of k in equation (1)

t = -8ln(\dfrac{7}{8})

t = 1.068 s

5 0
3 years ago
Find the equation of a line that passes through (2,9) and is parallel to the graph of y=3x+5 Write the equation in​ slope-interc
Vika [28.1K]

Answer:

y=3x+3

Step-by-step explanation:

9=3(2)+c

9=6+c

c=3

8 0
3 years ago
Suppose a pack of candy bars has 4 bars. Each bar weighs 3.37 ounces. How much does the pack weigh?
MrRissso [65]

Answer:

13.48

Step-by-step explanation:

multiply amount of candy bars (4) by weight (3.37) and get answer

4 x 3.37 = 13.48

4 0
3 years ago
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Rina8888 [55]

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4.255 ft²

Step-by-step explanation:

the area of the figure =

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= 3.375 + 0.88

= 4.255 ft²

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2 years ago
NEED HELP ASAP
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Answer:

All in the explanation.

Step-by-step explanation:

Since we will only be renting the car for one day it will only be a $50 dollar base fee. If we drive 192 miles and just rent it for one day the equation modeled will be $0.18(192) + 50 = 34.56 + 50 = $84.56 total.

3 0
3 years ago
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