Need help Plz 10 points

Answer:

John is 12 years old.

Step-by-step explanation:

She is three times as old as an 8 years old.

8*3 = 24

Twice as old as John. John is half her age.

24/2 = 12

Answer:

y= 3/4x-4

Step-by-step explanation:

y=mx+b to find the equation

Answer:

x = 8

Step-by-step explanation:

Answer:

4x and -2y

Step-by-step explanation:

Answer:

He paid $2.35 for each pair of socks.

An equation using the variable S is

$77.99 = 9S + (3 × $8.28) + $32

Step-by-step explanation:

Let S be the cost of a pair of socks

From the question, Mark purchase nine pairs of socks, that is, the total cost of the pairs of socks is 9S

He purchase three packages of undershirts for $8.28 each; the total cost of the three packages of shirt will be 3 × $8.28 = $24.84

and he also purchase a pair of pants for $32

Since he spent a total of $77.99, we can write that

$77.99 = 9S + (3 × $8.28) + $32

Now, we can determine S, the cost of a pair of socks

$77.99 = 9S + (3 × $8.28) + $32

$77.99 = 9S + $24.84 + $32

$77.99 = 9S + $56.84

9S = $77.99 - $56.84

9S = $21.15

S = $21.15/9

S = $2.35

Hence, he paid $2.35 for each pair of socks.

Answer:

The equation showing the relationship between the number of yards of yarn Paula has and the number of hats she can knit is ;

h = 42y

Step-by-step explanation:

Here, we want to write an equation;

From the question, we are told that the number of hats h that can be knitted is directly proportional to the amount of yarn in yards

Since it is a proportional relationship;

h = k * y

where k is the constant of proportionality given as 42

Hence;

h = 42 * y

h = 42y

Answer:

Tasha's weekly earnings

Step-by-step explanation:

I just took the pre-test

(sorry if I'm a little late)

Answer:

tasha's weekly earnings

Answer:

x is less than -3 so the answer would be the 3rd choice.

Step-by-step explanation:

Now you can get brainliest

Answer:

La respuesta es x=2/3

Step-by-step explanation:

Remplasa Y por un 0. Y luego conviertelo en -3x=2. A ultimo divide lod dos adas por -3. Tu respuesta es x=2/3

Answer:

15(B)

Step-by-step explanation:

all of those angles add up to 180 on a line

9 times 15 is 135

3 times 15 is 45

135+45 is 180

Answer:

Denise should plan to spend 36 minutes walking back.

Step-by-step explanation:

Let 'x' reflect the amount of time spent running in hours, then 3-x represents the time spent walking in hours.

here , we know,

           [tex]Distance= Speed \times time[/tex]

Given the values ,

[tex]Distance= 8x[/tex]  

[tex]speed=2mph[/tex]

[tex]Time=(3-x)hours[/tex]

Now , putting these values ,

[tex]8x=2(3-x)[/tex]

[tex]8x=6-2x[/tex]

[tex]10x=6[/tex]

[tex]x=\frac{6}{10}[/tex]

[tex]x=\frac{3}{5}[/tex]

[tex]\frac{3}{5} \times 60[/tex] = 36minutes (converting hours into minutes that is 1 hour = 60 minutes )

Hence , the answer is 36 minutes .

Answer:

$37,650

Step-by-step explanation:

A=15000(1+0.0525)^18

A=15000(2.51)

A=37650

Answer:

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

6x +16

Answer:

x=27⁰

Step-by-step explanation:

4x+7=5(x-4)

4x+7=5x-20

4x-5x=-20-7

-x=-27

x=27⁰

Answer:

C) -0.5

Step-by-step explanation:

Since the y₁ is decreasing, that automatically makes it a negative slope, and its decreasing by 0.5, so it's C!

Answer:

90

Step-by-step explanation:

1 is in the hundreds place

9 is in the tens place

4 is in the ones place

6 is in the tenths

Answer:

D.The addition property of equality applies to equations with rational expressions.​

Step-by-step explanation:

Answer:

The addition property of equality applies to equations with rational expressions.​

Step-by-step explanation:

just trust me

[tex]6 {x}^{2} - 6x - 72 = [/tex]

[tex]6( {x}^{2} - x - 12) = [/tex]

[tex]6(x - 4)(x + 3)[/tex]

Answer:

47,100.00

Step-by-step explanation:

Answer:

47050

Step-by-step explanation:

Answer:

27, correct me if im wrong

Step-by-step explanation:

Answer:

35/7 = 5

5*5 = 25

25+2 = 27

Step-by-step explanation:

Answer:

Hi there!

That is an example of the commutative property of addition! It states that changing the order of addends does not change the sum.

Hope this helps

Answer:

18

Step-by-step explanation:

It's the only size that works.

Answer:

.645 x 10^1

Step-by-step explanation:

Answer:

The relation is a function.

Step-by-step explanation:

Since there is one value of  y  for every value of  x  in  ( 2 , − 7 ) , ( 3 , − 7 ) , ( 4 , − 8 ) , this relation is a function.

Answer

70,010,000

Explanation

70 million 70,000,000 + 10,000=

70,010,000

Answer:

Slope of line = 2

Step-by-step explanation:

Line is passing through the points

[tex] (7,\:5)= (x_1, \:y_1)\\ \:\&\:\\ (12,\:15)=(x_2, \:y_2) [/tex]

[tex]slope \: of \: line = \frac{y_2 - y_1}{x_2 -x_2 } \\ \\ = \frac{15 - 5}{12 - 7} \\ \\ = \frac{10}{5} \\ \\ slope \: of \: line= 2 \\ [/tex]

Answer:

1.09 divided by 3.08 show your solution pls answer im suffering at this questioniunhobkhnkhnojnjonojnjonjonojnojnonjn

Step-by-step explanation:

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