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2 years ago

14

How do i factor the coefficent out of a variable, such as 2.4n+9.6 and -6z+12

1 answer:

ANEK [815]2 years ago

4 0

You are factoring one or more linear expressions (but are not factoring variables).

2.4n+9.6 can be divided by 2.4 and then the result mult. by 2.4:

2.4n+9.6 = 2.4 [ n + 4 ]

Also: -6z+12= 6 [ -z + 2 ] Here I have simplified linear functions but factoring out common constant coefficients (not variables).

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Sierra left $17.75 as a tip for a waiter. This was 20% of the bill before the tip. How much was her total bill before the tip

iris [78.8K]

Answer:

$31.95 Before tip.

Step-by-step explanation:

I believe you should just add 17.75+80%=31.95

4 0

1 year ago

Read 2 more answers

After 3 minutes, a submarine had descended to −320 feet. After 8 minutes, the submarine had descended to −420 feet. Assuming a l

LiRa [457]

Answer:

$d(t) = -20t - 260$

Step-by-step explanation:

The depth function is:

$d(t) = mt + b$

After 3 minutes, a submarine had descended to −320 feet.

This means that $d(3) = -320$ . So

$d(t) = mt + b$

$-320 = 3m + b$

After 8 minutes, the submarine had descended to −420 feet.

This means that $d(8) = -420$ . So

$d(t) = mt + b$

$-420 = 8m + b$

From the first equation:

$b = -320 - 3m$

So

$-420 = 8m + b$

$-420 = 8m - 320 - 3m$

$5m = -100$

$m = \frac{-100}{5}$

$m = -20$

And

$b = -320 - 3*(-20) = -260$

So

$d(t) = -20t - 260$

7 0

3 years ago

11) x – 3y = 3<br> How do you graph it?

kvv77 [185]

Hey!

------------------------------------------------

x – 3y = 3 is written in standard form. We can write in the slope-intercept form.

x - 3y = 3

x - 3y - x = 3 - x

3y = 3 - x

3y/3 = 3/3 - 3/x

y = 1 - 3/x

y = 1/3x - 1

Now, we know that the y-intercept is -1 and the slope is 1/3

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Hence, the answer is $\Large\boxed{\mathsf{In~picture}}$

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Hope This Helped! Good Luck!

8 0

3 years ago

Help me solve this. Thank youx

liubo4ka [24]

I guess it's b

${x}^{2} + 8x + 16 \\ \\ 1. \: {x}^{2} + 2(x)(4) + {4}^{2} \\ 2. \: (x + 4)^{2}$

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2 years ago

PLEASE HELP ME I AM SO DUM I CANT EVEN FIGUER IT OUT PLEASSE HELP ME PLEASE I REALLY NEED HELP.Its baking season for Mrs. Jackso

4vir4ik [10]

Answer:

The values are given below.

Step-by-step explanation:

Mrs. Jackson bakes cookies for her family and colleagues at work. The number of cookies she bakes on the x-th day of December is given by,

f(x) = $\mid (x - 24) \mid$ until 24-th of December.

So, we can construct the following table,

x f(x)

0 24

4 20

8 16

12 12

16 8

20 4

24 0

28 unknown

31` unknown

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2 years ago