All categories

3 years ago

Twice x, plus 6, is the same as -6

Mathematics

2 answers:

LiRa [457]3 years ago

8 0

I think so???????????

Anna007 [38]3 years ago

7 0

Answer:

x = -12

Step-by-step explanation:

x could be any number thus x could be 0. If x = 0 then 0 multiplied by 2 plus 6 equals 6. Because the added 6 is a positive number. In order to make "Twice x, plus 6" the same as -6 you would have to change the value of the x to -12 therefore -12 plus 6 equals the same as -6.

<3 Enjoy,

Dea

You might be interested in

(4k^5-9k^4+k^3-7k^2-9k+28)/4k-5

vlada-n [284]

Answer:

=k6+ −9 /4 k5+ 1 /4 k4+ −7 /4 k3+ −9 /4 k2+7k−5

Step-by-step explanation:

7 0

2 years ago

Please help with number 4

Anna35 [415]

Her statue is 20cm because 5ftx12cm is 60ft. therefore the statue should be 60ft in total. 60÷4=20 therefore her drawing is 20cm tall.

7 0

2 years ago

If f(x) = 12 +6, find f(-10) a. -16 b. -4 c. 4 d. 16

MAXImum [283]

Answer:

Step-by-step explanation:

put f of x in to the x spot

6 0

2 years ago

You deposit $50 in your savings account. One week later, you withdraw $20. Write each amount as an integer

Lerok [7]

Depositing means that you added 50$ to your account. This means that you account increased by an amount of 50.
The integer describing this is +50.

Then, withdrawing means that you took money from the account. This means that your account decreased by an amount of 20.
This can be expressed as a -20 integer.

7 0

3 years ago

A county government says that a safe level of chlorine in a hot tub is within 1.75 ppm of 3.25 ppm.

Schach [20]

Answer:

Part A : |x-2.5| ≤ 0.75 , x ∈ [1.75,3.5]

Part B : yes, the lifeguard should add more chlorine.

Step-by-step explanation:

Part A:

Let C is the variation of the level of chlorine in a hot tub.

Level of chlorine in a hot tub is within 1.75 ppm of 3.25 ppm.

To find absolute value inequality, need to find the standard level of chlorine 1.75 + C or 3.25 - C

1.75 + C = 3.25 - C

2C = 5

C = 2.5

So, the standard level would be 2.5 ppm,

If x represents the present level of chlorine,

Then it would be lie within 1.75 ppm of 3.25 ppm.

1.75 ≤ x ≤ 3.25

Subtract 2.5 from all sides

1.75 - 2.5 ≤ x -2.5 ≤ 3.25 - 2.5

-0.75 ≤ (x-2.5) ≤ 0.75

which is equivalent to the following absolute value inequality.

|x-2.5| ≤ 0.75

And the solve of the inequality : x ∈ [1.75,3.5]

Part B: If x = 1.0 ppm,

∴ |1.0-2.5| = 1.5 which is not less than equal to 0.75.

Another explanation:

the minimum safe level of chlorine in a hot tub is 1.75 ppm

Since 1 < 1.75

Therefore, lifeguard should add more chlorine.

8 0

3 years ago