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Delicious77 [7]
3 years ago
7

Darren graphs the linear equations y=-2/5x+3 and 2x+5y=15. The graphs look identical so he believes that the equations represent

the same line. Construct a mathematical argument to show that the two forms are equivalent using 6-8 sentences.
Mathematics
1 answer:
Julli [10]3 years ago
7 0

Answer:

He can solve the second equation for y to verify that it is identical to the first equation.

Step-by-step explanation:

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B. 8 inches, hope this was right and helped:)
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2 years ago
A culture started with 5000 bacteria. after 7 hours, it grew to 6500 bacteria. predict how many bacteria will be present after 1
spin [16.1K]

6500=7x+5000

6500-5000=7x+5000-5000

1500=7x

1500/7≈214

x≈214

y=19·214+5000

y=9066

answer=9066 bacteria

4 0
3 years ago
Each lap around a track is 1/4 mile. Hadley jogged 3 laps around the track. How many yards did Hadley jog
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Answer:

Hadley jogged a total of 1,320 yards.

Step-by-step explanation:

8 0
3 years ago
Please! Need help! Please answer 6 through 10! Brainliest! As a reward!
True [87]

Answer:

6=72 cm; 7=15 cm; 8=30 in; 9)56.5 degrees; 10)40 in

Step-by-step explanation:

6) The height of the triangle is 12 cm. The base is around 10 cm. Triangles are 1/2(b)h, so:

1/2(10)=5

5*12=60 cm

72 is closest to this.

7) Volume is l*w*h, so:

2.5*1.5=3.75

3.75*4=15 cm

8) Again, the height is 5 and the base is 12. 1/2(b)h means:

1/2(12)=6

6*5=30 in

9) All triangles have 180 degrees. So first, add the degrees you know:

33.5+90=123.5

Now, subtract that from 180:

180-123.5=56.5

10) Trapezoids can be found by multiplying the height by the smaller base, so:

6*8=40 in

Hope this helped!

4 0
2 years ago
A tour director collected $258 for 13 tour packages tour packages a cost $18 into a package requires $22 how many of each tour p
Lena [83]

Answer:


Step-by-step explanation:

X+Y = 13

 

$18 + $22 = $258

OR

18X+22Y=258

 

18X + 22(13 - X) = 258

 

18X + 286 - 22X  = 258

 

286 - 4X  = 258

 

-4X= 258 - 286

 

-4X = -28

 

X= 7

Y=6

 7 of the X tour  packages & 6 of the Y tour  packages

4 0
3 years ago
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