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2 years ago

Twice the difference of a number and 3 is 8. Use the variable for the unknown number.

Mathematics

1 answer:

ahrayia [7]2 years ago

6 0

Answer:

2(x-3) = 8

Step-by-step explanation:

first it says 'difference of a number and 3' so that equals to (x-3), we use 'x' for the variable for the unknown number

next it says 'twice', so two times which equals 2(x-3)

last it says 'is 8', which means 'equals' so "2(x-3) = 8"

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I need help with this????

Mars2501 [29]

Answer:

Step-by-step explanation:

X is either larger than -1 or smaller than 3 which is demonstrated in the equation in option A

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2 years ago

Graph the linear equation -4y=-5x-18

Kobotan [32]

Answer:

The graph intersect the y-axis at (0,4.5)

The graph intersect the x-axis at (-3.6,0)

Step-by-step explanation:

The equation is;

-4y=-5x-18

Dived every term by -4

$\frac{-4y}{-4} =\frac{-5x}{-4} -\frac{18}{-4} \\\\\\y=\frac{5}{4}x+\frac{9}{2}$

plot using a graph tool to view the liner graph as below

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3 years ago

How do I <br> evaluate 32-4x3

yawa3891 [41]

Answer:

Step-by-step explanation:

Evaluate is just simplifying so

4 times 3 is 12 times the negative makes it -12

then add 32 and -12 together

and you get 20

8 0

3 years ago

Read 2 more answers

3 is a factor of__ A)282 B)187 C)385 D)412

MrRissso [65]

Answer:

A. 282

Step-by-step explanation:

A trick I know is if you add all the digits of the number and they add up to a multiple of 3, it is divisible by 3.

282:

2 + 8 + 2 = 12

187:

1 + 8 + 7 = 16

385:

3 + 8 + 5 = 16

412:

4 + 1 + 2 = 7

7 0

2 years ago

A jar contains 30 red, 30 blue, and 60

kiruha [24]

The probability of picking red button is $\frac{1}{4}$

<u>Solution:</u>

Given, A jar contains 30 red, 30 blue, and 60 white buttons.

You pick one button at a random choice,

We have to find the probability that it is red button.

Now, total number of buttons = 30 + 30 + 60 = 120 buttons.

Number of favourable cases for red button = 30 red buttons.

The probability of an event is given as:

$\text { probability of a event }=\frac{\text { favourable ways to pick red }}{\text { total possiblities }}$

$=\frac{30}{120}=\frac{1}{4}$

Thus the probability that it is red is $\frac{1}{4}$

3 0

3 years ago