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levacccp [35]
3 years ago
12

Solve each system by elimination

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
4 0
First equation 2(4X -5y = 4)
8X -10y = 8

Elimination 8x -10y =8
-8x + 9y =-8

-y =0
-1(-y =0)
y =0

8x -10(0) =8
8x =8
(8x =8)/8
x = 1



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Answer:

  • Jon - Andrea = 1/10
  • Callie - Jon = 3/10

Step-by-step explanation:

In terms of tenths, the distances each hiked are ...

  • Andrea — 4/10
  • Jon — 5/10
  • Callie — 8/10

Then the differences of interest are ...

  Jon - Andrea = 5/10 -4/10 = 1/10

  Callie - Jon = 8/10 - 5/10 = 3/10

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Jon hiked 1/10 of the trail more than Andrea.

Callie hiked 3/10 of the trail more than Jon.

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3 years ago
I need help with this please
lesantik [10]
2 rational numbers are C. 2.777 and D. -7/3

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</span>
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3 years ago
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What is the common difference of the following arithmetric sequence? 102,100,98,96...
pshichka [43]

the common difference is two of course

3 0
3 years ago
Mrs. Pascal has a candy jar that contains 5 Jolly Ranchers and 13 jawbreakers. Solve each of the following problems and explain
UkoKoshka [18]

Answer:

Step-by-step explanation:

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2 years ago
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V = l x w x h
V = 4  x 5 x 120
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This prism would essentially look like a really tall rectangle, since the height is such a large number. I wouldn't accurately represent the units on graph paper, if I were you. Just label the sides with the numbers I gave you.

Another prism with a volume of 2400 might be a rectangular prism with a length of 8, a width of 10, and a height of 30. 

V = l x w x h
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This would also be a tall rectangle, although it isn't as tall. Keep in mind that l x w x h is only the volume formula for a rectangular prism. I only used rectangular prisms because they would be the easiest for this example. A triangular prism has a different volume formula.
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3 years ago
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