All categories

2 years ago

Ten less than 3 times a number is the same as number plus 4

Mathematics

1 answer:

pentagon [3]2 years ago

3 0

Answer: 3 x n -10 = n + 4

Step-by-step explanation:

n is your number,

3 times a number is 3 x n;

10 less than 3 times a number is 3 x n - 10

same means equality, we will use "="sign

3 x n - 10 = ...

n is your number

number plus 4 is (n + 4) --->

final expression is:

3 x n - 10 = n + 4

You might be interested in

Solve for x. X - 2 = 3( 2 - X ) divided by 4

igomit [66]

Answer:

x = 7/12

Step-by-step explanation:

We start off by multiplying both sides by 4:

4(x-2) = 3(2-x)

Distribute the 4 and the 3:

4x - 8 = 6 - 3x

Bring all the terms with the x at the first side:

4x + 3x = 6 + 8

7x = 12

x = 7/12

4 0

2 years ago

Please answer with explanation if nonsense answers I will report so please answer properly

alexgriva [62]

Answer:

x = 2

Step-by-step explanation:

We know that

The diagonals of a rectangle are of equal length
The diagonals bisect each other

Considering the above we have:

EG = HF = 2JF = 2JH

Substitute the given values and solve for x:

24x - 8 = 2*(8x + 4)
24x - 8 = 16x + 8
24x - 16x = 8 + 8
8x = 16
x = 16/2
x = 2

3 0

2 years ago

What is 5 x 5 x 5????? thanks

siniylev [52]

Answer:125

Step-by-step explanation:magic

6 0

2 years ago

Read 2 more answers

A car drives at 45 km/h for 3 hours. How far does the car travel?

stellarik [79]

Answer:

Hey!

The car travelled 135 kilometers!

Step-by-step explanation:

Here you have to do the speed (45km/h) multiplied by the time (3 hours)

45 x 3 = 135

So the car has travelled 135 kilometers!

HOPE THIS HELPS!!

8 0

2 years ago

Read 2 more answers

12.what is the probability that a boy and a girl chosen randsomly will be seniors?

zhenek [66]

$\frac{\textbf{1}}{\textbf{20}}$

Step-by-step explanation:

Probability= $\frac{\text{number of favourable outcomes}}{\text{total number of outcomes}}$

Probability for a randomly chosen girl to be senior= $\frac{\text{number of senior girls}}{\text{total number of girls}}$

Probability for a randomly chosen girl to be senior= $\frac{7}{8+11+9+7}=\frac{7}{35}=\frac{1}{5}$

Probability for a randomly chosen boy to be senior= $\frac{\text{number of senior boys}}{\text{total number of boys}}$

Probability for a randomly chosen girl to be senior= $\frac{9}{10+7+10+9}=\frac{9}{36}=\frac{1}{4}$

For two independent events,

Probability for both event 1 and event 2 to take place= $\text{probability of event 1} \times \text{probability of event 2}$

Since choosing boys and girls is independent,

Probability for both boy an girl chosen to be senior= $\text{probability for boy to be senior}\times\text{probability for girl to be senior}$

Probability for both boy and girl chosen to be senior= $\frac{1}{5} \times \frac{1}{4} = \frac{1}{20}$

So,required probability is $\frac{1}{20}$

3 0

3 years ago