how do I find the value of x?

Answer: [tex]x=\dfrac{3240}{83}[/tex]

Step-by-step explanation:

Given: 83 : 45 :: 72 : ?

Let unknown quantity (?) be x.

Now, x : y :: a : b

[tex]\Rightarrow\ \dfrac{x}{y}=\dfrac{a}{b}[/tex]

83 : 45 :: 72 : x

[tex]\Rightarrow\ \dfrac{83}{45}=\dfrac{72}{x}\\\\\Rightarrow\ x=\dfrac{72}{83}\times45\\\\\Rightarrow\ x=\dfrac{3240}{83}[/tex]

Hence, [tex]x=\dfrac{3240}{83}[/tex]

Answer:you have no number line to answer

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

first-person point of view is when an author focuses on what one character sees/thinks/feels/believes

Answer

w=18

Step-by-step explanation:

Answer:

s = 3.75 miles/hour

Step-by-step explanation:

Distance covered = 1/4 of a mile

Time taken = 1/15 of an hour

We need to find the speed of the track. We know that,

[tex]s=\dfrac{d}{t}\\\\=\dfrac{\dfrac{1}{4}}{\dfrac{1}{15}}\\\\=3.75\ mi/h[/tex]

So, the required speed is 3.75 miles/hour.

Answer:

t = 5

Step-by-step explanation:

It's asking what t needs to equal for the equation to be equivalent to -44.

-10t + 6 = -44

-10t = -50

t = 5

check

-10(5) + 6 = -44

-50 + 6 = -44

-44 = -44

Answer:

t = 5

Step-by-step explanation:

h(t) = -10t + 6

After that you just write -10t + 6 = -44

Subtract 6 from -44

-44 - 6 = -50

So you will have

-10t = -50

Then you do -10t/-10 = -50/-10

-10t/-10 = t

-50/-10 = 5

So the final answer is t = 5

For proof, plug 5 in.

-10(5) + 6 = ?

-10(5) = -50

-50 + 6 = -44

SO THIS IS THE CORRECT ANSWER LEZZGO!

Answer:

N=2

Step-by-step explanation:

(1x10^5)(1.9x10^n) = 1.9x10^7

7-5=2

The value of n for the exponential expressions will be 2.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

The given expression will be solved as follows:-

[tex]1.9 \times 10^7 = (1 \times 10^5)(1.9 \times 10^n)[/tex]

[tex]10^7 = 10^5\times 10^n[/tex]

[tex]10^7 = 10^{n+5}[/tex]

Use the property of exponents which states that if the base is the same and the numbers with the exponent are in multiplication then the powers will be added.

7 = n + 5

n = 7 - 5

n = 2

Therefore, the value of n for the exponential expressions will be 2.

To know more about an expression follow

https://brainly.com/question/11975096

#SPJ2

Answer:

25 cm

Step-by-step explanation:

If the string is 25 cm and it goes perfectly around the edge of a plate. The plate, is 25 cm.

Answer:

D. 1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Pre-Calculus

Calculus

Step-by-step explanation:

Step 1: Define

[tex]\frac{d}{dx} [tan(x)]\\x = \pi[/tex]

Step 2: Differentiate

Step 3: Evaluate

Answer:

Each ticket costs $15 without using a coupon :)

Answer:

yes they are proportional

Answer: It's not

Step-by-step explanation: Proportionality (if that's a word) is basically changing a fraction to a proportion. So 8:14 is basically 4:7, and 29:35 is just that since it can't be simplified. Obviously the two aren't equal, so its not proportional to each other.

Answer:

x = 14

Step-by-step explanation:

Similar triangles have the property that the measure of its corresponding sides is proportional.

This can be written as:

[tex]\displaystyle \frac{x+1}{27}=\frac{5}{x-5}[/tex]

Cross-multiplying the fractions:

[tex](x+1)(x-5)=27(5)[/tex]

Operating:

[tex]x^2-4x-5=135[/tex]

[tex]x^2-4x-140=0[/tex]

Factoring:

(x-14)(x+10)=0

Solving:

x=14, x=-10

Only positive values can be accepted for x, thus:

x = 14

Answer:

you have to aline it with what graph it is.

Step-by-step explanation:

Answer:

17

Step-by-step explanation:

the input will always be x so it says that the input is 4, so we replace x with 4 which would look like: y=(4)²+1 which would then we do the exponenet and the equation will change to y= 16+ 1 which will equal y=17 and y is the output.

Answer:

500 calories

Step-by-step explanation:

person burns 375/45 calories in 1minute

then a person burns (375/45)*60 calories in 1hour

Answer: x = 35

Hope this helped have an amazing day!

Answer:

x=−43x=-43 Double roots

Step-by-step explanation:

$300 * 3/4 = $225

Therefore Lily took $225.

Answer:

Step-by-step explanation:r=15yards, h=20yards,Π=3.14, v=?

Vol. Of cylinder=Πr²h

V= 3.14×15²×20

V=3.14×225×20

V= 14130

V=14130.00cm³

Answer:

Ok look times 18 and 10 then what ever you get with that times it with 12

Step-by-step explanation:

Answer:128

Step-by-step explanation:

Answer: hey lol

Step-by-step explanation:

Answer:

Something?

Step-by-step explanation:

LOLhfggdjfjgucdh

Answer:

30/2

15 cm per min

Step-by-step explanation:

Answer:

15 cm per minute

Step-by-step explanation:

30/2=15

Answer:

y=6x+50

Step-by-step explanation:

y is the total amount of money she is saving and y equals to the amount of money she got from walking the dog and the amount of money she was given by her grandma,so we have to find out how much she gets from walking the dogs.she gets paid 6 dollars everytime she walks the dog and we are told she walked the dog x times we will simply multiply 6 with x to get the total amount of money she earned ehich will come to a total of 6x .now that we have the money she got from dog walking we will add it up with the amount she got from her grandma which is 50 .making our answer y=6×+50

Answer:

[tex]\frac{a}{b}=\frac{1}{4}[/tex]

Thus, the ratio is:

a:b = 1:4

Step-by-step explanation:

Given the expression

[tex]2a-\frac{b}{6}=\frac{b}{3}[/tex]

[tex]\mathrm{Add\:}\frac{b}{6}\mathrm{\:to\:both\:sides}[/tex]

[tex]2a=\frac{b}{2}[/tex]

Divide both sides by 2

[tex]\frac{2a}{2}=\frac{\frac{b}{2}}{2}[/tex]

[tex]a=\frac{b}{4}[/tex]

Divide both sides by b

[tex]\frac{a}{b}=\frac{1}{4}[/tex]

Thus, the ratio is:

a:b = 1:4

Answer:

Step-by-step explanation:

You must state the "price before tax".  Let this be P.  Also, you must state the sales tax rate.  Let this be r, where r is a decimal fraction.  

Then the sales tax is rP, the product of the tax rate and the "price before tax."

The total cost of the item (for which it is sold) is (P + rP)($40).

If P = $40 and the sales tax rate is 7%, then

this total cost is (1 + 0.07)P = 1.07P = $42.80

Your question would be clearer if you wrote it like this:  Given that the base price of an item is $40 and that the sales tax rate is 7%, find the total cost of the item with tax.  That would be (1 + 0.07)($40), or $42.80.

The sales tax is $42.80 - $40 = $2.80.

Answer:

Sales tax: 2.8$

Total cost: 42.8$

Step-by-step explanation:

the percentage of tax is that much of the total price. if there is 50% sales tax (unrealistic) and the item costs 100 dollars without any tax, then the tax would be 50 dollars. To find this, turn the percent into a decimal (move the decimal place to the left twice) and multiply that by the price. To do this with this problem, use this strategy. 40 times .07=2.8. 2.8 plus 40= 42.8. hope this helps!!

Answer:

a + b = 28

b = 31

Step-by-step explanation:

i hope it's correct but I am not sure tho :)

Answer:

C. Infinitely many solutions.

Step-by-step explanation:

-4x - 7 + 10x = -7 + 6x

Combine like terms on the left side. Rearrange the right side.

6x - 7 = 6x - 7

Add 7 to both sides.

6x = 6x

Subtract 6x from both sides.

0 = 0

0 = 0 is a true statement.

Both sides are equal, so all real values of x make the equation true.

Answer: C. Infinitely many solutions.