All categories

3 years ago

Help!!!which of the following best describes the algebraic expression 10x+2

Mathematics

2 answers:

Zinaida [17]3 years ago

8 0

Answer:

Option 2 : The sum of 10 times a number and 2

Step-by-step explanation:

To Find:which of the following best describes the algebraic expression 10x+2

Solution:

Option 1. The product of ten plus a number and two

Let the number be x

⇒2*(10+x)

Option 2. The sum of 10 times a number and 2

Let the number be x

⇒10x+2

Option 3 Ten times the quantity of a number plus two

Let the number be x

let the quantity of number x be y

⇒10y+2

Option 4.Ten times the sum of a number and two

Let the number be x

⇒10*(2+x)

Thus option 2 describes the given algebraic expression 10x+2

padilas [110]3 years ago

4 0

I believe the correct answer is C) Ten times the quantity of a number plus two. Hope this helps! =)

You might be interested in

Solve for x. See attachment.....

N76 [4]

64=-4+4x
64+4=4x
68=4x
68/4=x
17=x

8 0

3 years ago

HELP PICTURE IS SHOWN

docker41 [41]

I think the answer is c

6 0

3 years ago

The numbers 1, 2, 3, 4, and 5 are written on slips of paper, and 2 slips are drawn at random one at a time without replacemen

mamaluj [8]

<h2>Answer:</h2>

(a)

The probability is : 1/2

(b)

The probability is : 1/2

<h2>Step-by-step explanation:</h2>

The numbers 1, 2, 3, 4, and 5 are written on slips of paper, and 2 slips are drawn at random one at a time without replacement.

The total combinations that are possible are:

(1,2) (1,3) (1,4) (1,5)

(2,1) (2,3) (2,4) (2,5)

(3,1) (3,2) (3,4) (3,5)

(4,1) (4,2) (4,3) (4,5)

(5,1) (5,2) (5,3) (5,4)

i.e. the total outcomes are : 20

(a)

Let A denote the event that the first number is 4.

and B denote the event that the sum is: 9.

Let P denote the probability of an event.

We are asked to find:

P(A|B)

We know that it could be calculated by using the formula:

$P(A|B)=\dfrac{P(A\bigcap B)}{P(B)}$

Hence, based on the data we have:

$P(A\bigcap B)=\dfrac{1}{20}$

( Since, out of a total of 20 outcomes there is just one outcome which comes in A∩B and it is: (4,5) )

and

$P(B)=\dfrac{2}{20}$

( since, there are just two outcomes such that the sum is: 9

(4,5) and (5,4) )

Hence, we have:

$P(A|B)=\dfrac{\dfrac{1}{20}}{\dfrac{2}{20}}\\\\i.e.\\\\P(A|B)=\dfrac{1}{2}$

(b)

Let A denote the event that the first number is 3.

and B denote the event that the sum is: 8.

Let P denote the probability of an event.

We are asked to find:

P(A|B)

Hence, based on the data we have:

$P(A\bigcap B)=\dfrac{1}{20}$

( since, the only outcome out of 20 outcomes is: (3,5) )

and

$P(B)=\dfrac{2}{20}$

( since, there are just two outcomes such that the sum is: 8

(3,5) and (5,3) )

Hence, we have:

$P(A|B)=\dfrac{\dfrac{1}{20}}{\dfrac{2}{20}}\\\\i.e.\\\\P(A|B)=\dfrac{1}{2}$

7 0

3 years ago

Work out total surface area of pyramid

Agata [3.3K]

You would need to know the dimensions of the pyramid and wether it was triangle or square bottomed

7 0

3 years ago

-5=x/3-8 plz someone help me plz

Flura [38]

Isolate x by adding 8 to both sides.
3 = x/3
Then, multiply by 3 on both sides.
9 = x
To prove that this is right, you can imput 9 into the equation and it equals -5.

5 0

3 years ago