Sam's mother is twice as old as Sam. In 12 years, Sam will be as old as his mother was 12 years ago. How old are Sam and his mother now?

Answer:

a=7

Step by step Explanation:

Step 1: Simplify both sides of the equation.

1.3(a+2)+5.6=17.3

(1.3)(a)+(1.3)(2)+5.6=17.3(Distribute)

1.3a+2.6+5.6=17.3

(1.3a)+(2.6+5.6)=17.3(Combine Like Terms)

1.3a+8.2=17.3

1.3a+8.2=17.3

Step 2: Subtract 8.2 from both sides.

1.3a+8.2−8.2=17.3−8.2

1.3a=9.1

Step 3: Divide both sides by 1.3.

1.3a      9.1

1.3     =   1.3

a = 7

Answer:

m > 12

Step-by-step explanation:

I) Find what m is in 1/4m = 3:

1/4m = 3

Divide by 1/4:

m = 12

II) Make an inequality:

m > 12

Answer:

linear

Step-by-step explanation:

Answer:

I am don't know sorry

Step-by-step explanation:

sorry follow me

Answer:

the first answer choice

Step-by-step explanation:

if you do 1/3 times -9 its -3

Answer:

( -5, -3)

Step-by-step explanation:

94 is the correct answer I believe

Answer:25

Step-by-step explanation:

Simply multiply by five on both the 5 and 4 and you get an equivalent fraction

Answer:

25/20

Step-by-step explanation:

I set up a proportion and to find the how 4 goes to 20, I divided 20/4 to get 5 and then I multiplied 5*5 to get 25.

You can also cross multiply.

Answer:

Step-by-step explanation:

(0,8)(8,0)

find slope

m=-1

b=8

y=-x+8

Answer:

y= -1x+8

Step-by-step explanation:

slope is -1/1 and your y intercept is (0,8)

Answer:

its 3.01

Step-by-step explanation:

Right on edge

The standard deviation is 2.08.

A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.

We have the data,

X     :   0     1     2     5     10

P(X) :  0.4  0.2  0.2  0.1  0.1

CF   : 0.4   0.6  0.8  0.9  1

Sum of fx = 2.5

Mean = 2.5

Deviation X = -2.1 -2.3 -2.1 -2 -1.5

X² = 4.41 5.29 4.41 4 2.25

fX² = 1.764 1.058 0.882 0.4 2.225

Now, standard deviation

= √4.329/1

= 2.08

Learn more about standard deviation here:

https://brainly.com/question/23907081

#SPJ7

Answer: 18m

Step-by-step explanation:

Answer:

she had save 100 dallors

Answer:

A) 81 minutes

Step-by-step explanation:

Answer:

(4x + 22) feet

Step-by-step explanation:

Diego is building a patio deck. The length of the deck is (x + 8) feet. The width of the deck is (x + 3) feet. What is the simplest form expression for the perimeter of the deck?

A patio deck = Rectangular in shape

Hence:

The formula for the Perimeter of a rectangle = 2L + 2W

Where

L = Length

W = Width

The length of the deck is (x + 8) feet. The width of the deck is (x + 3) feet.

The perimeter of the deck =

2(x + 8)feet + 2(x + 3)feet

= (2x + 16) feet +( 2x + 6)feet

= (2x + 2x + 16 + 6) feet

= (4x + 22) feet

Therefore, the perimeter of the deck = (4x + 22) feet

Step-by-step explanation: -2 x -3 = 6 cause the negatives cancel out to make 6.

Answer:

ok, lol it's 6

Step-by-step explanation:

hope it helps! it basically doing 2 x 3 which equals 6 sometimes you'll add the negative sign but in this equation u dont need to

Answer:

She made 10 free throws

Step-by-step explination:

I found it on this website: https://staff.4j.lane.edu/~ruzicka/Cal_Young/math/Illustrative%20Math/Unit%203%20Rates%20and%20Percents/Lesson%2011/L11%20HW%20Key%20Corrected.pdf

Try it and see if you are right

Answer:

A line is increasing if it goes up from left to right. The slope is positive, i.e. m > 0 {\displaystyle m>0} .

A line is decreasing if it goes down from left to right. The slope is negative, i.e. m < 0 {\displaystyle m<0} .

If a line is horizontal the slope is zero. This is a constant function.

If a line is vertical the slope is undefined (see below).

Answer:

12

Step-by-step explanation:

Answer:

Thats confusing

Step-by-step explanation:

Hm I would prob say 2/3 or 4/3 I dont  know  i'm not smart

Answer:

A

Step-by-step explanation:

(f*g)(x)=(2)*(x)=2x

A

your scientific notation will be 2.505 x 10^4

Answer:

x=3, y=2

Step-by-step explanation:

i would say its B. The initial loan amount

Answer:

Sully's initial loan amount

edit: i accidently rated my answer as 1 star but i promise its right

Answer:

y < 160

Step-by-step explanation:

y + 20 < 180

    -20 < -20

y < 160

y is less than 160

so the answer is y < 160

happy to help!

Given:

The word is "CALCULATOR."​

To find:

The number of distinct permutations.

Solution:

In the word "CALCULATOR",

The number of letters = 10

In which, we have 2 C, A, L and 1 U, T, O, R.

We know that,

[tex]^nC_r=\dfrac{n!}{(n-r)!}[/tex]

[tex]^nC_n=\dfrac{n!}{(n-n)!}=n![/tex]

To find the number of distinct permutations of the given word need to divide permutation of all letter by the permutations of repeated letters.

[tex]\text{Total ways}=\dfrac{^{10}C_{10}}{^2C_2\ ^2C_2\ ^2C_2\ ^1C_1\ ^1C_1\ ^1C_1\ ^1C_1}[/tex]

[tex]\text{Total ways}=\dfrac{10!}{2!2!2!1!1!1!1!}[/tex]

[tex]\text{Total ways}=\dfrac{10\times 9\times 8\times 7\times 6\times 5\times 4\times 3\times 2\times 1}{2\times 2\times 2\times 1\times 1\times 1\times 1}[/tex]

[tex]\text{Total ways}=453600[/tex]

Therefore, the number of distinct permutations of the word "CALCULATOR" is 453600.

Number of distinct permutation of the word "CALCULATOR." is 453600

How to solve this problem?

Total number of words in "CALCULATOR" is 10

we find out the words that are repeating

A is repeating twice (2)

C is repeating twice (2)

L is repeating twice (2)

Number of permutations = number of letters !/ repeating letters!

Number of distinct permutation =

[tex]\frac{10!}{2!2!2!} \\\frac{10\cdot9\cdot8\cdot7\cdot6\cdot5\cdot4\cdot3\cdot2\cdot1}{2\cdot2\cdot2} \\453600[/tex]

Number of distinct permutation of the word "CALCULATOR." is 453600

learn more about the distinct permutations here:

https://brainly.com/question/21767354

Answer:

I think 668.52, but im not exactly sure

Answer:

2200

Step-by-step explanation:

So if you do 550 and x that by 4 it equles it is 2200 .