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Burka [1]
3 years ago
15

3. When Sharon began shopping this morning, she had $40.00. She purchased five paperback books and had lunch. The books were all

the same price, and lunch cost $3.25. She now has $7.00 left over. What was the price of each of the books?
A. $5.95
B. $7.35
C. $6.60
D. $8.75
Mathematics
1 answer:
vovangra [49]3 years ago
6 0
A. $5.95 is the answer
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3 years ago
Write parametric equations of the line with the equation 4x-6y=-12<br><br> HELP FAST
zimovet [89]

Answer: x = t, y = 2t/3 + 2

Step-by-step explanation:

You want to write both x and y in terms of t

so if you rearrange 4x - 6y = -12 you get

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set x = t

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and that's it!

another one you could do is

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3 years ago
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egoroff_w [7]
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3 years ago
when a stone falls freely, the time taken to hit the ground varies as the square root of the distance fallen. If it takes four s
Eva8 [605]

Answer:

The stone would take approximately 10.107 seconds to fall 500 meters.

Step-by-step explanation:

According to the statement of the problem, the following relationship of direct proportionality is built:

t \propto y^{1/2}

t = k\cdot t^{1/2}

Where:

t - Time spent by the stone, measured in seconds.

y - Height change experimented by the stone, measured in meters.

k - Proportionality constant, measured in \frac{s}{m^{1/2}}.

First, the proportionality constant is determined by clearing the respective variable and replacing all known variables:

k = \frac{t}{y^{1/2}}

If t = 4\,s and y=78.4\,m, then:

k = \frac{4\,s}{(78.4\,m)^{1/2}}

k \approx 0.452\,\frac{s}{m^{1/2}}

Then, the expression is t = 0.452\cdot y^{1/2}. Finally, if y = 500\,m, then the time is:

t = 0.452\cdot (500\,m)^{1/2}

t \approx 10.107\,s

The stone would take approximately 10.107 seconds to fall 500 meters.

4 0
3 years ago
The mass of a vase is 0.3kilgram. A flower has a mass that is 0.03 times the mass of the vase. What is the mass of the flower?
deff fn [24]
Hello!

0.3 × 0.03 = 0.009

The mass of the flower is 0.009 kilogram.
8 0
3 years ago
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