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ryzh [129]
3 years ago
12

Are the equations – 2x = 10 and -5x = 25 equivalent? Explain

Mathematics
2 answers:
xxMikexx [17]3 years ago
8 0
Yes.
Explanation:
-2x=10
You’d divide both sides by -2 that would be
-5
Then -5x=25
You’d divide both sides by -5 that would be
-5
Dahasolnce [82]3 years ago
7 0

Answer:NO

Step-by-step explanation:

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45 points for first most detailed / accurate answer:
Bas_tet [7]
A.) Since there are no restrictions as to the dimensions of the candle except that their volumes must equal 1 cubic foot and that each must be a cylinder, we have the freedom to decide the candles' dimensions. 

I decided to have the candles equal in volume. So, 1 cubic foot divided by 8 gives us 0.125 cubic foot, 216 in cubic inches.

With each candle having a volume of 216 cubic inches, I assign a radius to each: 0.5 in, 1.0 in, 1.5 in, 2.0 in, 2.5 in, 3.0 in, 3.5 in, and 4.0 in. Then, using the formula of the volume of a cylinder, which is:

V=pi(r^2)(h)

we then solve the corresponding height per candle. Let us let the value of pi be 3.14.

Hence, we will have the following heights (expressed to the nearest hundredths) for each of the radius: for 

r=2.5 in: h=11.01 in
r=3.0 in: h= 7.64 in
r=3.5 in: h= 5.62 in
r=4.0 in: h= 4.30 in
r=4.5 in: h= 3.40 in
r=5.0 in: h= 2.75 in
r=5.5 in: h= 2.27 in
r=6.0 in: h= 1.91 in

b. each candle should sell for $15.00 each

($20+$100)/8=$15.00

c. yes, because the candles are priced according to the volume of wax used to make them, which in this case, is just the same for all sizes
7 0
2 years ago
What is this pls help me​
Drupady [299]

Answer:

D’=(3,3); F’=(-2,-2); E’= (-5,0)

Step-by-step explanation:

To find the reflection over the y axis (the line x=0), you just need to change the x either from positive to negactive or the opposite.

8 0
2 years ago
Read 2 more answers
(7y is supposed to be 7x)
Andrei [34K]

Answer:

Step-by-step explanation:

Angle E is (7x+27) because it is corresponding.

So, 7x+27+15x-5=180 (angle on a straight line is 180 degrees

22x+22=180

22x=158

x= 158/22 = 7.18'

7 0
2 years ago
6x 4y y 5 -2 3x 6 how can I solve this
WITCHER [35]

Answer:

Look below at the image I have provided for you <3

Step-by-step explanation:

I hope this helps!

5 0
2 years ago
Tony works at an airport in the UK.
bazaltina [42]

Answer:

219,000

Step-by-step explanation:

How many 6 hour periods are in a day?

24 divided by 6 is 4.

150 times 4 equals 600

finally 600 times 365 equals 219,000 planes a year

7 0
3 years ago
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