18x-(3x+9) expression and equations​

Answer:

The right algebraic expression is 2x - 1

Step-by-step explanation:

Let us change the given phrase from words to mathematics expression

In our question, the phrase is " One less than twice a number "

To change it to an algebraic expression

→ Assume that the number is x

∵ Twice a number means 2 × x = 2x

∵ One less than twice the number means 2x - 1

∴ The algebraic expression is " 2x - 1 "

→ The error in the given expression is

The right algebraic expression is 2x - 1

Answer:

4 terms

Step-by-step explanation:

N, number, p , and q. Good luck!

Answer:

4

Step-by-step explanation:

a term is either a single number or variable, or numbers and variables mutiplied together.

Answer: She can travel a quarter of a mile in 1 minute.

Step-by-step explanation: In 8 mins she can bike 2 miles and if you split that in half then you can see she can bike 1 mile in 4 min then you can say ok well in 2 mins she can bike half a mile and just split that again and you have a Quarter of a mile in one Minute...

Answer:

29 = x

Step-by-step explanation:

The two angles shown are vertical angles and vertical angles are equal

59 = 2x+1

subtract 1 from each side

59-1 = 2x+1-1

58 = 2x

Divide by 2

58/2 = 2x/2

29 = x

Answer:

0.006

Step-by-step explanation:

On the first draw, there are 52 cards, 4 of which are sevens.

On the second draw, there are 51 cards, 4 of which are nines.

The probability is:

(4/52) × (4/51)

= 4/663

≈ 0.006

Answer:

Lets find how much flour we need for just one serving.

2 2/3 ÷ 6

8/3 ÷ 6

8/3 * 1/6

8/18

4/9 cup of flour per serving

If we triple the recipe (6 * 3 = 18), we will have a total of 18 servings. Multiply the amount of flour we got for one serving to 18 servings.

4/9 * 18/1

72/9

8 cups of flour for 18 servings

Best of Luck!

Step-by-step explanation:

make me as brain liest

Answer:

A

Step-by-step explanation:

Ya Welcome

Answer:

I think its A

Step-by-step explanation:

hope this helps some

Answer:

B

Step-by-step explanation:

Next time, please show us the question! Luckily I know that the question is asking "which of these is a function" but not a lot of people can assume that. The answer is B because a function can't have repeating x values or more than 1 x value that's the same. None of the x values in B repeat so it's a function! Also, remember that y values CAN repeat, so if the y values repeat, it doesn't mean it isn't a function.

Answer:

8

Step-by-step explanation:

2x=12 2^2=4     6x=36

12+4=16             2^2=4 2*4=8 36-8=28

28-16=8

Answer:

The total number of sets is 2,640.

Step-by-step explanation:

The number of marbles in the bag are:

S = {3R, 5G, 1L, 2Y and 6O}

There are a total of N = 17 marbles in the bag.

Four marbles are randomly selected.

Assume that the selection was without replacement.

It is provided that two of the marbles are green.

And the remaining two are non-green.

A sample of the selection is as follows:

G, G, _, _

The two green marbles can be selected in 5 × 4 = 20 ways.

So, the remaining two marbles cannot be green.

That leaves us with: 3R, 1L, 2Y and 6O = 12 marbles.

The third marble can be selected in 12 ways.

And the fourth marble can be selected in 11 ways.

So the number of combinations of selecting 4 marbles such that 2 are green and 2 are non-green is:

Total number of sets = 5 × 4 × 12 × 11 = 2640

Thus, the total number of sets is 2,640.

Answer: a=57

b=64

c=116

d=59

A is 57 because the lines are parallel and alternate interior angles. B is 64 because the lines are parallel and alternate interior angles. C is 116 because of linear pair. 180 - 64(b). D is 59 because of triangle sum theorem. Sum of measures of all angles in a triangle equal 180

Answer:

[tex] \huge{ \boxed{ \bold{ \text{46}}}}[/tex]

Step-by-step explanation:

If the value of variables of algebraic expression are given, the value of the term or expression can easily obtained by replacing the variables with numbers.

[tex] \text{ \underline{ Given}} : \text{x = - 4}[/tex]

[tex] \text{ \underline{ To \: find}} : \sf{value \: of \: - 3x + 2 {x}^{2} + 2}[/tex]

[tex] \text{ Plug \: the \: value \: of \: x}[/tex]

[tex]➝ \: \sf{ - 3 * (- 4 )+ 2 *  {( - 4)}^{2} + 2}[/tex]

[tex] \text{Remember!} : \text{Multiplying \: a \: negative \: integer \: by \: negative \: integer \: gives \: a \: positive \: integer.}[/tex]

➝[tex] \sf{12 + 2 *  {( - 4)}^{2} + 2}[/tex]

[tex] \text{Evaluate \: the \: power}[/tex]

➝[tex] \text{12 + 2 * 16 + 2}[/tex]

[tex] \text{Multiply \: the \: numbers}[/tex]

➝[tex] \text{12 + 32 + 2}[/tex]

[tex] \text{Add \: the \: numbers}[/tex]

[tex]➝ \boxed { \text{46}}[/tex]

[tex] \text{Hope \: I \: helped!}[/tex]

[tex] \text{Best \: regards!}[/tex]

~[tex] \text{TheAnimeGirl}[/tex]

Answer:

46

Step-by-step explanation:

-3(-4)+2(-4)^2+2

Answer:

3.268

Step-by-step explanation:

line up the decimals. we know that since 2 is a whole number the decimal will be behind the 2 making it 1.634 x 2.000. you can waste paper multimplying by 0, 3 times. Instead add focus on the 2 and the other numbers.

  1.634

x 2.000

2x4, 2x3, 2x6, and 2x1

be sure to carrying your numbers and you will get 3268 + 0 + 0 + 0. from here there are 2 numbers behind the decimal so move the decimal left 3 places

3268.0 = 3.268

hope this helps!

Answer:

0.39

Step-by-step explanation:

You are welcome...

Answer:

x=4

Step-by-step explanation:

thats the answer ^^

Answer:

its the second one

Answer:

(3, 4)

Step-by-step explanation:

Answer:

.05,.05

Step-by-step explanation:

Answer:

a) 7.2, -7.2, 7.2

b) -3.5, 3.5, 3.5

c) 5 1/2, -5 1/2, 5 1/2

Step-by-step explanation:

The opposite number of a value is the number that adds to it to make zero. To find the opposite of a number you need to switch the sign, either from positive to negative or vice versa. The absolute value of a number is the distance from zero it is. Since distance cannot be negative you just need to take the number and make it positive.

Answer:

the answer is the second option hope this helped

Step-by-step explanation:

Answer:

b :)

Step-by-step explanation:

Answer:

-4 and 10

Step-by-step explanation:

USE THE INFO BELOW TO SOLVE

Step-by-step explanation:

The median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average. The median is sometimes used as opposed to the mean when there are outliers in the sequence that might skew the average of the values.

need more help?

pics are below for more examples.

:)

Answer: 300ft

Step-by-step explanation:

Answer:

what type of help do you want?

Answer:

15/14 or 1 1/14

Step-by-step explanation:

11/14+2/7=

11/14+4/14=

15/14=

1 1/14

Answer:

Step-by-step explanation:

11/4 + 2/7 =  77/28 + 8/28 =  85/28

Answer:

The correct option is  B

Step-by-step explanation:

From the question we are told that

   The  sample size is  [tex]n  =  64[/tex]

    The  proportion that choose to vaccinate the teen boys is  [tex]\r p =  0.12[/tex]

considering the first statement

The 95% confidence interval is 12% ± the margin of error*standard deviation is  false because

The 95% confidence interval is is  %12 ± the margin of error

considering the second statement

The confidence interval should not be calculated due to the small sample size is true because from the central limit theorem

   np =  64 * 0.12 =  7.68

and this value is  less than 10  hence the confidence interval should not be calculated

considering the third statement

A 99% confidence interval will be smaller than the 90% confidence interval is false

  This is because as the confidence level increase (for example  from 90% to  99%) the margin of error increase which increases the confidence interval  

Answer:

x = 7/3

Step-by-step explanation:

4x - 2 = x + 3 + 2

4x - 2 = x + 5

Rearranging the terms, we get,

4x - x = 5 + 2

3x = 7

x = 7/3

Hence, x = 7/3.

Answer: Nick and Pablo

Step-by-step explanation:

6 feet and 2 yards are the same distance because each yard is 3 feet

Answer:

6 feet 2 yards

Step-by-step explanation:

Step-by-step explanation:

i mean I never did that in six grade

Answer:

  26%

Step-by-step explanation:

Your 36 monthly payments will total ...

  36 × $205.10 = $7383.60

$5860 of that is the amount you borrowed. The remainder is the interest you pay:

  $7383.60 -5860 = $1,523.60

As a percentage of the original loan amount this is ...

  $1523.60/$5860 × 100% = 26%

You pay back 26% of the original loan amount in interest.

Answer:

80%

Step-by-step explanation: