Please help me out!! 90 points if you help me!! 4.5x-7=20

Answers

Answer 1

Answer:

x = 6

Step-by-step explanation:

We can add both sides by 7:

4.5x = 20 + 7 = 27.

Then, we can divide both sides by 4.5, getting x = 27 / 4.5 = 6.


Related Questions

Simplify 24 - 15 - 3+ 2.6.
O A. 30
O B. 31
O C. 126
O D. 15

Answers

Answer:

D

Step-by-step explanation:

A text font fits 12 characters per inch. Using the same font, how many characters can be expected per yard of text? There are 12 inches in a foot, and 3 feet in a yard. 36 characters 144 characters 360 characters 432 characters

Answers

432 characters can be expected to fit per yard of text. Therefore, option D is the correct answer.

Given that, a text font fits 12 characters per inch.

We need to find how many characters can be expected per yard of text.

How to convert yards to inches?

To convert a yard measurement to an inch measurement, multiply the length by the conversion ratio. The length in inches is equal to the yards multiplied by 36.

Let x be the number of characters to be used in a yard.

12 characters / in = x/ 36 in

(12 characters * 36 in) / in = x

x = 432 characters

Therefore, option D is the correct answer.

To learn more about yards visit:

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the answer is 432 characters

16) Evaluate the expression with its given values.

hi idk if it’s right but could anyone help at least if so ty

Answers

The answer is one because you plug in the numbers it’s 3 x 4/ 12 = 12/12 which is 1

A movie club charges a one-time fee membership fee of $25. This allows members to purchase movies for $7 each. Lincoln is a member of the movie club and has spent a total of $60. How many movies has Lincoln purchased

Answers

Answer:

he purchased 5 movies bro

Step-by-step explanation:

Can v11 be classified as a rational

Answers

Answer:

yes it should

Step-by-step explanation:

Yes it should be classified as a rational

what is 125.2 X 3 3/4=?

Answers

Answer: 31.3x33

Step-by-step explanation:

Did the test :)

Are the equations – 2x = 10 and -5x = 25 equivalent? ​

Answers

Answer: [tex]Yes[/tex]

Q: How are they the same answer?

A: You divide both of them by the number with x.

Divide both sides by -2

[tex]-2x/-2=10/-2\\x=-5[/tex]

Divide both sides by -5

[tex]-5x/-5=25/-5\\x=-5[/tex]

That's how both of them are equivalent to each other.

[tex]\text{Hey there!}[/tex]

[tex]\text{Are the equations -2x = 10 \& -5x = 25 equivalent?}[/tex]

[tex]\text{-2x = 10}[/tex]

[tex]\text{DIVIDE both sides by -2}[/tex]

[tex]\bf{\dfrac{-2x}{-2} = \dfrac{10}{-2}}[/tex]

[tex]\text{Cancel out \dfrac[-2x}{-2} because it gives 1}[/tex][tex]\text{Cancel out:}\ \bf\dfrac{-2x}{-2} \text{ because it gives you 1}[/tex]

[tex]\text{Keep:} \bf{\dfrac{10}{-2}}\text{ because it gives you the result of x}[/tex]

[tex]\bf{\dfrac{10}{-2} = -10\div2 \rightarrow -5}[/tex]

[tex]\boxed{\underline{\text{\bf{x = -5}}}}\checkmark[/tex]

[tex]\text{-5x = 25}[/tex]

[tex]\text{DIVIDE both sides by -5}[/tex]

[tex]\bf{\dfrac{-5x}{-5}= \dfrac{25}{-5}}[/tex]

[tex]\text{Cancel out:}\ \bf{\dfrac{-5x}{-5}}\text{ because it gives you 1}[/tex]

[tex]\text{Keep:}\ \bf{\dfrac{25}{-5}}\ \text{ because it gives you the result of x }[/tex]

[tex]\bf{\dfrac{-25}{5} = -25 \div 5 \rightarrow -5 }[/tex]

[tex]\boxed{\underline{\bf{x = -5}}}\checkmark[/tex]

[tex]\boxed{\text{To answer your question: \boxed{\bf{YES}} because both x's equal to -5}}[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{LoveYourselfFirst:)}[/tex]

Given the function f(x)=2x-7. What is x when f(x)=17?

Answers

Answer:

x = 12

Step-by-step explanation:

Step 1: Define

f(x) = 2x - 7

f(x) = 17

Step 2: Substitute

17 = 2x - 7

Step 3: Solve for x

Add 7 on both sides: 24 = 2x

Divide both sides by 2: 12 = x

Step 4: Check

f(12) = 2(12) - 7

f(12) = 24 - 7

f(12) = 17

Answer:

f(17)=2(17)-7

=34-7

=27

Classify the following triangle. Check all that apply.

Answers

Answer:

Acute and Straight

Step-by-step explanation:

factorise 9(a+b)^2 + (a+b) -8 ​

Answers

Answer:

[tex](9a+9b-8)(a+b+1)[/tex]

Step-by-step explanation:

[tex]9(a+b)^2 + (a+b)-8[/tex]

Expand [tex](a+b)^2[/tex]

[tex]9(a^2+2ab+b^2)+a+b-8[/tex]

[tex]9a^2+18ab+9b^2+a+b-8[/tex]

Now it is time to think.

Once

[tex]9a^2=9a \cdot a[/tex]

[tex]9b^2=9b \cdot b[/tex]

[tex]18ab=9ab+9ab[/tex]

[tex]-8=-8 \cdot 1[/tex]

We can get something in the format

[tex](9a+9b-8)(\text{some expression here})[/tex]

From the conclusions above,

[tex](9a+9b-8)(a+b+1)[/tex]

Find the value of the expression -1/3-(-5/12).

Answers

Answer:

1/12

Step-by-step explanation:

ASAP!!!!! A square pyramid and its net are shown below. What is the surface area of the pyramid?

Answers

Answer:

800

Step-by-step explanation:

16x16=256

17x16=272

272/2=136

136x4=544

544+256=800

What is 3.000 in standard notation?

Answers

Answer:

3 x 10(to the 3rd power)

Step-by-step explanation:

What is the answer for 4x+3=36

Answers

[tex]4x + 3 = 36\\4x = 36 - 3\\4x = 33\\x = \frac{33}{4}[/tex]

A rectangular prisms base has an area of 40cm2.the prisms height is 5cm .what is the volume of the prism?

Answers

Answer:

5

Step-by-step explanation:

5679

Find the reciprocal of 5.

Answers

Answer:

0.2 is the answer

Step-by-step explanation:

Answer:

0.2

Step-by-step explanation:

5^-1=0.2

4a−2(3a+8)=6 what is the answer

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{a = - 11}}}}}[/tex]

Step-by-step explanation:

[tex] \sf{4a - 2(3a + 8) = 6}[/tex]

Distribute 2 through the parentheses

[tex] \longrightarrow{ \sf{4a - 6a - 16 = 6}}[/tex]

Collect like terms

[tex] \longrightarrow{ \sf{ - 2a - 16 = 6}}[/tex]

Move 16 to right hand side and change it's sign

[tex] \longrightarrow{ \sf{ - 2a = 6 + 16}}[/tex]

Add the numbers: 6 and 16

[tex] \longrightarrow{ \sf{ - 2a = 22}}[/tex]

Divide both sides by 2

[tex] \longrightarrow{ \sf{ \frac{ - 2a}{ - 2} = \frac{22}{ - 2}}} [/tex]

Calculate

[tex] \longrightarrow{ \sf{a = - 11}}[/tex]

Hope I helped !

Best regards! :D

fully simplify only sing positive exponents:

3xy^2/9x^8y^6

Answers

Answer:

Step-by-step explanation:

3/9 = 1/3

xy^2/x^8y^6 = 1/x^(8-1)y^(6-2) = 1/x^7y^4

therefore, 1/3x^7y^4

25
Highest Temp(°F)
What is the
difference
in the low
and high
temp?
0
Lowest Temp °F)
-25

Answers

Answer:

there both the same number its just that one is on top and the other is on bottom

If EF=6 and EG=23 find the value of FG

Answers

Answer:

FG = 17

Step-by-step explanation:

EF=6 and EG=23

find the value of FG

     

       6

E-------------F-----------------------------------G

|<-----------------------23---------------------->|

EF + FG = 23

6 + FG = 23

FG = 23 - 6

FG = 17

❗️URGERNT❗️
I will give brainliest if your response comes with an explanation.

During a heavy rainstorm, a city in Florida received
12 1/4 inches of rain in 25 1/2 hours. What is the approximate rainfall rate in inches per hour?

Answers

Answer: 0.48 in

Step-by-step explanation:

The problem asks for unit rate. To solve, let's convert the fractions to decimals.

[tex]12\frac{1}{4} =\frac{49}{4} =12.25[/tex]

[tex]25\frac{1}{2}=\frac{51}{2}=25.5[/tex]

Now that they are in decimals, we can set up a proportion.

[tex]\frac{12.25 in}{25.5 hrs} =\frac{x}{1 hr}[/tex]           [cross multiply]

[tex]12.25=25.5x[/tex]         [divide both sides by 25.5]

[tex]x=0.48[/tex]

Now, we know that there was approximately 0.48 in of rainfall per hour.

For a given recipe, 10 cups of flour are mixed with 20 cups of sugar. How many cups of flour should be used if 4 cups of sugar are used? Assuming a constant ratio, fill out the table of equivalent ratios until you have found the value of x.

Answers

Answer:

2

Step-by-step explanation:

If 20 cups are used on the first recipe then 4 are used on the second, the way to find the answer is to divide 20 by 4. 20 divided by 4 will get 5. Now we have to divide the 10 cups of flour by 5 which in the end will get 2.

The answer should be 2

What is the best first step for solving the equation 5 = 3x - 4? a. Add 4 to both sides of the equation. b. Subtract 4 from both sides of the equation. c. Multiply both sides of the equation by 3 d. Divide both sides of the equation by 3.​

Answers

Answer:

A. Add 4 to both sides of the equation.

Step-by-step explanation:

Isolate your variable by using inverse operations.

The boiling point of three components A, B and C of petroleum are 120○C, 70○C, 250○C respectively. If a mixture of these three is fractionally distilled, which of these will be obtained at the bottom of the distillation column?

Answers

Answer:

Mustaali Chill Bro

Component C, with a boiling point of 250°C, will be obtained at the bottom of the distillation column.

The component with the highest boiling point will be obtained at the bottom of the distillation column.

In this case, component C has the highest boiling point at 250°C, followed by component A at 120°C, and component B at 70°C. Therefore, during fractional distillation, component C will be obtained at the bottom of the distillation column.

To know more about distillation, refer here:

https://brainly.com/question/31839396

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[tex]x = 8[/tex]I need help solving this.

Answers

Answer:

2

Step-by-step explanation:

x³ = 8

∛8 = 2

found by 2 • 2 • 2 = 4 • 2 = 8

If y is directly proportional to x and y = 6 when x = 2, what is the proportion equation?

Answers

Answer:

y = 3x

Step-by-step explanation:

Direct proportion equation is

y = kx

6 = k*2

Divide each side by 2

6/2 = 2k/2

3 =k

The equation is y = 3x

Formula for direct proportion: y = kx

Solution:

6 = 2k

~Divide 2 to both sides

3 = k

Best of Luck!

Amy buy 5 pounds potatoes for $2.50. How much does 1 pound of potatoes weight? (What is the unit rate?)

Answers

Answer:

$0.50

Step-by-step explanation:

If there are 5 pounds of potatoes for $2.50, you must divide to find the unit rate.

$2.50 / 5 = $0.50

1 pound of potatoes costs $0.50

Answer:

0.5 $/pound

Step-by-step explanation:

[tex]5[/tex] pounds ⇒ [tex]2.50$[/tex]$

to khow much dollars one 1 pound costs, we must divide the price of 5 pounds by 5

[tex]\frac{2.50}{5} = 0.5[/tex] $/ pound

2.5 is in dollars and 5 is in pounds so the rate unit is $/pound

the cost of a camp is $300 for the first week and $125 for each week beyond the first. the total cost can be modeled by the expression 300+125(x-l). what does (x-l) repreasent​

Answers

Answer: hopefully this helps

D. The number of weeks after the first week

Step-by-step explanation:

who can solve these!!!​

Answers

Answer:

1. 5 months2. 147 pages

Step-by-step explanation:

1....................................

Company A

75 + 20x

Company B

35x

Time required:

75 + 20x = 35x15x = 75x = 5 months

2....................................

Set up fee = $15

Additional fee= $0.17 per page

Max amount= $40

0.17x + 15 < 400.17x < 25x < 25/0.17x < 147

Max number of pages is 147

Step-by-step explanation:

the solution is attached

have a good day

can someone help me with this geometry question?

Answers

Answer:

(-1,4.5)

Step-by-step explanation:

You would have to use the formula for midpoint. 5+-3/2= -1

3+6/2= 4.5  which would be -1 for x and 4.5 for y.

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