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4 years ago

What is 12 15/9 in simplest form?

Mathematics

1 answer:

scoray [572]4 years ago

7 0

Answer:

13 2/3

Step-by-step explanation:

divide each by three

5/3

12 5/3, or 13.66 repeating

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? ÷ 4 = 9<br><br>please help me

kkurt [141]

Answer:

Your answer would be 36

Step-by-step explanation:

You can figure this out by multiplying B by C to get A or

4 x 9 = 36

Then you can check by going

36 ÷ 4 = 9

9 = 9

This is the right answer

5 0

4 years ago

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6. 2(x + 6) = 3(x + 1)

diamong [38]

Answer:

x=9

Step-by-step explanation:

2(x + 6) = 3(x + 1)

2x+12=3x+3

2x+12-12=3x+3-12

2x=3x-9

2x-3x=-9

-1x=-9

-1x÷-1=-9÷-1

x=9

7 0

4 years ago

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19) n? – 8n – 27 = 6<br> solve each equation by completing the square

Fynjy0 [20]

Answer:

n=11 or n=-3

Step-by-step explanation:

Consider the quadratic equation $n^2-8n-27=6.$

First, remind the formula

$(a-b)^2=a^2-2ab+b^2$

To complete the square, note that

$8n=2\cdot n\cdot 4$

Hence, we need $+4^2$

Add 16 to both sides of equation:

$n^2-8n+16-27=6+16\\ \\(n-4)^2-27=22\\ \\(n-4)^2=49\\ \\n-4=7\text{ or }n-4=-7\\ \\n=11\text{ or }n=-3$

6 0

3 years ago

In need of help please :)

Anettt [7]

Answer:

okay let's start

Step-by-step explanation:

$number \: 1 \\ cos \: b = \frac{adjacent}{hypotenuse} \\ cos \: b = \frac{ac}{cb} \\ \: \ cos \: b = \frac{12}{13} \\$

5 0

3 years ago

Can some one help me ASAP pls!

horsena [70]

Answer:

LBC is 75 degrees

Step-by-step explanation:

When you follow the angle measurements from the first and when one line equals 180, figuring out the other angle measurements can determine the answer for LBC.

8 0

4 years ago

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