2 years ago

Solve for x -3x+5y=15

Mathematics

1 answer:

Goshia [24]2 years ago

8 0

Answer: look at the picture

Step-by-step explanation: hope this help

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The point (7, 8) is the solution of which of the following systems of equations?

Alex73 [517]

Option 4

Verification:-

$\\ \sf\longmapsto x-7y=-49$

$\\ \sf\longmapsto 7-7(8)=-49$

$\\ \sf\longmapsto 7-56=-49$

$\\ \sf\longmapsto -49=-49$

And

$\\ \sf\longmapsto 10x+9y=142$

$\\ \sf\longmapsto 10(7)+9(8)=142$

$\\ \sf\longmapsto 70+72=142$

$\\ \sf\longmapsto 142+142$

Hence verified

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2 years ago

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Princess Poly found the king's stash of garden plans and sees that the area of each plot is described as a polynomial. She has n

tankabanditka [31]

Answer:

Step-by-step explanation:

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3 years ago

2/3y=27 how do i figure out what 2/3y=27 is?

saveliy_v [14]

Answer:

y=40.5

Step-by-step explanation:

you need to get y out of a fraction, to do so multiply by the denominator on both sides

3(2/3y) = 3(27)

then divide to solve for y

2y = 81

y=40.5

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2 years ago

Use multiplication to find 2 equivalent fraction for 3/4 and 4/5

Contact [7]

Equivalent fractions for 3/4 are 6/8 and 9/12

Equivalent fractions for 4/5 is 8/10 and 12/15

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3 years ago

A submarine dove at a rate of 18 feet per minute. What was the depth of the submarine after 15 minutes?

Juliette [100K]

So you’re basically multiplying 18 and 15. It’s going to be 270 ft

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2 years ago