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vazorg [7]
1 year ago
15

Nancy orders computer tables from a furniture showroom that charges $65 per table and an additional $30 for transportation. Rita

orders the same kind of tables from a different showroom that charges $70 per table and an additional $20 for transportation. If they pay the same amount, how many tables did each buy?
Mathematics
2 answers:
telo118 [61]1 year ago
3 0

Answer:

im pretty sure the answer is 40

SOVA2 [1]1 year ago
3 0

4:)

<h2>I'm pretty sure! </h2>

GOOD LUCK

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74.823 WHAT IS THE PLACE VALUE OF THE 3?
Ipatiy [6.2K]
One thousandths. make sure you add the ths because it is a decimal
4 0
3 years ago
Read 2 more answers
At 1:00 pm the water level in a pool is 13 inches. At 1:30pm the water level is 18 inches. At 2:30pm the water level is 28 inche
SashulF [63]
From the given question we come to know of certain number of facts and they are:
At 1:00 PM the water level of the pond was = 13 inches
At 1:30 PM the water level of the pond was = 18 inches
At 2:30 PM the water level of the pond was = 28 inches
From the above given facts we can easily find the amount of water changing every half an hour.
Amount of increase in water from 1:00PM to 1:30 PM = (18 - 13) inches
                                                                                       = 5 inches
Amount of increase in water level from 1:30PM to 2:30PM = (28 -18) inches
                                                                                             = 10 inches
From the above two deductions we can come to the conclusion the the constant rate of change in water level is 5 inches for every half an hour.
4 0
3 years ago
Read 2 more answers
Linda goes water-skiing one sunny afternoon. After skiing for 15 min, she signals to the driver of the boat to take her back to
trasher [3.6K]
60 = a * (-30)^2
a = 1/15
So y = (1/15)x^2


abc)
The derivative of this function is 2x/15. This is the slope of a tangent at that point.
If Linda lets go at some point along the parabola with coordinates (t, t^2 / 15), then she will travel along a line that was TANGENT to the parabola at that point.
Since that line has slope 2t/15, we can determine equation of line using point-slope formula:
y = m(x-x0) + y0
y = 2t/15 * (x - t) + (1/15)t^2
Plug in the x-coordinate "t" that was given for any point.


d)
We are looking for some x-coordinate "t" of a point on the parabola that holds the tangent line that passes through the dock at point (30, 30).
So, use our equation for a general tangent picked at point (t, t^2 / 15):
y = 2t/15 * (x - t) + (1/15)t^2
And plug in the condition that it must satisfy x=30, y=30.
30 = 2t/15 * (30 - t) + (1/15)t^2
t = 30 ± 2√15 = 8.79 or 51.21
The larger solution does in fact work for a tangent that passes through the dock, but it's not important for us because she would have to travel in reverse to get to the dock from that point.
So the only solution is she needs to let go x = 8.79 m east and y = 5.15 m north of the vertex.
4 0
3 years ago
Collect the data for our solar system
guapka [62]

Answer:

Step-by-step explanation:

33

3 0
3 years ago
Simplified?
kap26 [50]

Answer:

Option B

Step-by-step explanation:

Given the following question:

In order to find the answer, we need to convert the scientific notation into standard notation and then simplify by subtracting the decimals. Then we convert the standard notation back into scientific notation.

0.0007 - (4.9\times 10^{-7} )
4.9\times10^{-7} =0.00000049
0.0007-0.00000049
0.0007-0.00000049=0.00069951
=0.00069951
0.00069951=6.9951 \times10^{-7}
=6.9951 \times10^{-7}

Your answer is "6.9951 × 10^-7" or option B.

Hope this helps.

3 0
2 years ago
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