please help me solve this

Answer:

T = 1200 + 450x

Let's say T stands for total^.

let a = 4

c = 16

: . b^2= ac

: . = 4 × 16

: . b^2 =

64

: . b = √64

: . b = 8

: . the mean proportional is 8.

Answer:

124-v=175

124-175=v

v= -51

Answer:

negative

Step-by-step explanation:

Answer:

Negative value

Step-by-step explanation:

→ (2/5) - (5/6)

→ (2×6/5×6) - (5×5/6×5)

→ (12/30) - (25/30)

→ - 13/30

So, the value is negative.

sum of number=30+36+p+40+44=150+p

n=5

average=35

Step-by-step explanation:

average=sum of number÷n

35=150+p÷5

35×5=150+p

175-150=p

25=p

p=25

Answer:

P=25

Step-by-step explanation:

Hi! Let's start with with the average...

First we multiply 35 by the amount of numbers we have

We have 5 including the unidentified

so...

35x5=175

Now since we have 175 we have to add all the other numbers together

30+36+40+44=150

Next we subtract

175-150= 25

P= 25

To check our answer add all of them together

40+30+40+44+25=175

We were right!

Hope this helps! :)

Step-by-step explanation:

Peter = 12 years

John = 3 years

peter twice John = ( 12×3)

Peter will be 36 years.

Answer:

[tex] \frac{3}{10} = \frac{n}{50} \\ \frac{3}{10} \times 50 = n \\ 3\times 5 = n \\ 15 = n \\ thank \: you[/tex]

Answer:

d=-4

Step-by-step explanation:

Answer:

4 I guess

Step-by-step explanation:

10-2d=2-4d

10-2= -4d+2d

8=2d

2=2

d=4

Answer:

the answer is  A.

Step-by-step explanation:

Answer:

14 quizzes

Step-by-step explanation:

Jill takes 6 quizzes every 3 weeks.

the unit rate is 3 quizzes every week, because 6 divided by 3 equals 2

now, take the number of quizzes per week and multiply it by 7

(2 x 7) = 14

So, Jill would take 14 quizzes in 7 weeks.

Answer:

[tex]5(2x - 4) = 2(ax + b) \\ 10x - 20 = 2ax + 2b \\ 10x - 2ax = 2b + 20 \\ 2x(5 - a) = 2(b + 10)[/tex]

a is 5, b is -10

Answer:

-18.6, -9.9, -7.1, -0.6, 11.1, 11.4

Step-by-step explanation:

Imagine you put this on a number line. You would put them in this order. The -18.6 is furthest from zero. Just put the number is order as if putting them on a number line.

Answer: 407.67

Explanation:

(8.11×107)–(4.3×107) =

(8.11)(107)−(4.3)(107) =

         407.67

Answer:520

Step-by-step explanation:

Because 60+24=84.

80x5=400

24x5=120

»»————-　★　————-««

I believe your answer is:  

[tex]g(3) = -8[/tex]

»»————-　★　————-««  

Here’s why:  

⸻⸻⸻⸻

[tex]\boxed{\text{Evaluating the function...}}\\\\g(x)=-4x+4; g(3)\\\\--------------\\\rightarrow g(3)=-4(3)+4\\\\\rightarrow g(3) = -12 + 4\\\\\rightarrow \boxed{g(3)=-8}[/tex]

⸻⸻⸻⸻

»»————-　★　————-««  

Hope this helps you. I apologize if it’s incorrect.  

Answer:

50

Step-by-step explanation:

x/5 = 30

= 30 x 5

= 150

150 - (21 + 29+ 18 + 32)= 50

the fifth number is 50.

The fifth number is 50 and this can be determined by using the formula of the mean and also by using the arithmetic operations.

Given :

Let the sum of five numbers be 'x'. Then the mean is given by the formula:

[tex]\rm Mean =\dfrac{Sum\;of\;all\;data}{Total \; number\;of\;data}[/tex]

Now, substitute the known values in the above expression.

[tex]30=\dfrac{x}{5}[/tex]

x = 30 [tex]\times[/tex] 5

x = 150

So, the sum of five numbers is 150 that is:

21 + 29 + 18 + 32 + a = 150

where 'a' is the fifth number.

Simplify the above expression in order to find the fifth number.

100 + a = 150

a = 150 - 100

a = 50

So, the fifth number is 50.

For more information, refer to the link given below:

https://brainly.com/question/1957976

Answer:

1 - 9/7n

Step-by-step explanation:

1/7 - 3 ( 3/7n - 2/7)

Multiple negative 3 in the numbers with parenthesis.

1/7 - 9/7n + 6/7

Combine terms.

1/7 + 6/7 = 7/7 which can be turned into a whole number so 1.

-9/7n cannot be added into anything.

1 - 9/7n

Answer:

He will pay $1,771 more than the actual price.

Step-by-step explanation:

260 x 36 = 9360

9360 - 7589

= $1,771

Answer:

A [tex]x=4[/tex]

Step-by-step explanation:

Perimeter = the sum of all side lengths

Perimeter = [tex](x-3)+2x+6[/tex]

Perimeter = 15 (in this case)

so...

[tex](x-3)+2x+6=15[/tex]

And we're trying to solve for x.

Step 1. Subtract 6 to both sides

[tex](x-3)+2x=9[/tex]

Step 2. Add 3 to both sides

[tex]x+2x=12[/tex]

Step 3. Combine like terms

[tex]3x=12[/tex]

Step 4. Solve for x

[tex]x=\frac{12}{3}[/tex]

[tex]x=4[/tex]

Answer:

Step-by-step explanation:

Given:

Solve for x by cross-product:

WE can solve it by ratio and proportions

Let the distance be x

[tex]\\ \sf\longmapsto \dfrac{x}{12.6}=\dfrac{3000}{3.2}[/tex]

[tex]\\ \sf\longmapsto 3.2x=3000(12.6)[/tex]

[tex]\\ \sf\longmapsto 3.2x=37800[/tex]

[tex]\\ \sf\longmapsto x=\dfrac{37800}{3.2}[/tex]

[tex]\\ \sf\longmapsto x=11812.5mi[/tex]

Answer:

b = - 50

Step-by-step explanation:

Using F.O.I.L (First Outer Inner Last)

-5 × - 2x = 10x

-5 × 10 = - 50

10x - 50

10x - 50 = 10x + b

10x - 10x - 50 = b

b = - 50

Answer:

Step-by-step explanation:

Socks: 200000 + 40000 = 240000

Shirts:                                     50000   Must have stayed the same.

Pants: 900 + 3000                 3900   Pants

Total                                      293900

Answer:

Step-by-step explanation:

A(x₁ ,y₁)   & D(5 , -6)

Midpoint =[tex]\left(\dfrac{x_{1}+x_{2}}{2},\dfrac{y_{1}+y_{2}}{2} \right)[/tex]

[tex]R(9,-2)= \left(\dfrac{x_{1}+5}{2},\dfrac{y_{1}-6}{2} \right)[/tex]

Compare x and y coordinates of both sides

[tex]\dfrac{x_{1}+5}{2}=9[/tex]            ; [tex]\dfrac{y_{1}-6}{2}=-2[/tex]

x₁ + 5 = 18            ; y₁ - 6 = -4

      x₁ = 18 - 5     ; y₁       = -4 + 6

      x₁ = 13                 y₁ = 2

A(13 , 2)

Answer:

x = -1

Step-by-step explanation:

Given: [tex]f(x) = - 3x + 3[/tex]

Solve for x, When: [tex]f(x) = 6[/tex]

Step by step:

[tex] - 3x + 3 = 6[/tex]

[tex] - 3x = 6 - 3[/tex]

[tex] - 3x = 3[/tex]

[tex]x = 3 \div - 3[/tex]

[tex]\boxed{\green{x = - 1}}[/tex]

Answer:

118

Step-by-step explanation:

:)

Answer:

69

Step-by-step explanation:

.......................

.........

Answer:

Step-by-step explanation:

3x-7=23

<=> 3x = 23 + 7

<=> 3x = 30

<=> X = 30 ÷ 3

<=> X = 10