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3 years ago

12

At Doggy Daycare, there are 3 trainers assigned for every 12 dogs. There are 72 dogs enrolled for the daycare on Tuesday. Determ

ine the number of trainers needed.

1 answer:

fenix001 [56]3 years ago

7 0

Answer:

18

Step-by-step explanation:

make a ratio relation:

3 trainers : 12 dogs

x trainers : 72 dogs

3/12 = x/72

solve for x, and you get 18

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In how many ways can 5 students sit around a table?

Elodia [21]

Answer:

24 different ways

Step-by-step explanation:

I looked it up to figure this out and that is how I got that answer.

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3 years ago

What is the solution to he equation (y/y-4)-(4/y+4)=3^2/y^2-16

kicyunya [14]

Answer:

$y=\pm i \sqrt{7}$

Step-by-step explanation:

Given equation is $\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{3^2}{(y^2-16)}$

Factor denominators then solve by making denominators equal

$\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{3^2}{(y^2-16)}$

$\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{9}{(y+4)\left(y-4\right)}$

$\frac{y\left(y+4\right)-4\left(y-4\right)}{\left(y-4\right)\left(y+4\right)}=\frac{9}{(y+4)\left(y-4\right)}$

$y\left(y+4\right)-4\left(y-4\right)=9$

$y^2+4y-4y+16=9$

$y^2=9-16$

$y^2=-7$

take squar root of both sides

$y=\pm \sqrt{-7}$

$y=\pm i \sqrt{7}$

Hence final answer is $y=\pm i \sqrt{7}$ .

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3 years ago

Six times the sum of a number and twelve is forty. Which equation represents this?

luda_lava [24]

Answer:

6n + 12 =40

Step-by-step explanation:

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3 years ago

I don't understand this problem...<br> 1/4 x (-12)=

Nikitich [7]

Answer:

-3

Step-by-step explanation:

When multiplying a positive number with a negative number, the product will <u>always</u> be negative. First, let's solve the problem disregarding the negative sign.

$\frac{1}{4} * 12$
$\frac{12}{4}$
$3$

Now that we know the product of 1/4 x 12 is 3, we can assume that the product of 1/4 x -12 is -3.

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3 years ago

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How many solutions are there to the equation below 8x + 11 = 8x + 8

Nataly [62]

8x + 11= 8x + 8

8x - 8x = 8 - 11

0 = - 3 False

No solutions.

Answer is B.0.

8 0

3 years ago

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