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3 years ago

What is the answer to 10-2.7y=y+9

Mathematics

1 answer:

ZanzabumX [31]3 years ago

7 0

$10-2.7y=y+9\\\\-2.7y-y=9-10\\\\-3.7y=-1\ \ \ \ \ |:(-3.7)\\\\y=\frac{10}{37}=0.270270$

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tia_tia [17]

Answer:

25.

Step-by-step explanation:

I am assuming you only mean the small triangles, not the composite ones.

The second triangle set has 3 triangles on bottom row and 1 on the top - total 4.

The 3rd triangle set has 5 triangles on the bottom , 3 on the next up and 1 on the top - total 9

Following the pattern 4th set will have the number of triaNGLES

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So the 5th will have 9 + 7 + 5 + 3 +1 = 25 triangles.

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3 years ago

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Pachacha [2.7K]

Answer:

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Step-by-step explanation:

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3 years ago

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slamgirl [31]

Answer:

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3 years ago

How to solve the inequality

beks73 [17]

Answer:

x $\geq$ 19/6

Step-by-step explanation:

1. Multiply both sides by 6 (the LCM of 6,3)

5/2 + 3-x <= 2(x-2)

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3. Expand.

11/2-x<= 2x-4

4. Add x to both sides.

11/2<= 2x-4+x

5. Simplify 2x-4+x to 3x-4.

11/2<=3x-4

6. Add 4 to both sides.

11/2+4<=3x

7. Simplify 11/2+4 to 19/2

19/2<=3x

8. Divide both sides by 3

19/2 /3 <=x

9. Simplify 19/2 /3 to 19/2*3

19/2*3<=x

10. Simplify 2*3 to 6

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11. Switch sides.

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Hope this helps!

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3 years ago

The sum of a number and 15 is 63 find the number

tatuchka [14]

Answer:

x = 48

Step-by-step explanation:

$x+15=63\\x=48$

3 0

3 years ago

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