2a-3b for a= 1/2 and b =6

Answers

Answer 1

Answer:

- 17

Step-by-step explanation:

Substitute the given values into the expression

2a - 3b

= 2 × [tex]\frac{1}{2}[/tex] - 3 × 6

= 1 - 18

= - 17


Related Questions

Deb drinks 2 pints of milk each day. How many days does it take her to drink 1 gallon of milk?

Answers

Answer:

4 days

Step-by-step explanation:

1 gallon = 8 pints !

I am cooking a recipe. It requires 7/2 of sugar. I only have a 1⁄4 cup to measure the sugar with. How many quarter cups would I need to measure the correct amount of

Answers

Answer:

14

Step-by-step explanation:

Convert [tex]\frac{7}{2}[/tex] to a fraction with a common denominator

[tex]\frac{7}{2} (\frac{2}{2} )=\frac{14}{4}[/tex]

You now divide the fractions to find the amount of correct measurements needed.

[tex]\frac{\frac{14}{4} }{\frac{1}{4} }[/tex] For dividing by a fraction it is the same a multiplying by its reciprocal.

This becomes [tex]\frac{14}{4} (\frac{4}{1} )=\frac{14}{4} (4)=14[/tex]

You will need 14 correct measurements.

Describe how to round set to the best
HELP PLEASE QUICKLY

Answers

Round the number to the nearest ten or hundredth or thousands ex: 177 you would round it to 200

somebody help plz its hard for me

Answers

Answer:

I h ok honestly dont know that I'm so sorry

i don’t really know either, try socratic

represent the following situations using quadratic equation in standard form
1. If the square of a number is added to 8 times the number, the result is 100
2. Mr. Apoloan wants to lay out a rectangular playground with an area of 30 square feet. The desired length will be 7 times the width​

Answers

1. If the square of a number is added to 8 times the number, the result is 100.

Let x be the number.

Equation: x² + 8x - 100 = 0

2. Mr. Apoloan wants to lay out a rectangular playground which will contain 30 square feet. The desired length will be 7 times the width.

Area: 30ft²

Length: 7w

Width: w

Area of a rectangle: LW

(7w)w = 30ft²

Equation: 7w² - 30 = 0

2.40 x 10^2/ 3.0x 10^-1

Answers

Answer:

8

Step-by-step explanation:

PLS HELP ME, WILL GIVE BRAINLIEST!!

Answers

Answer:

no they are too far apart

Step-by-step explanation:

Translate this sentence into an equation. 39 is the product of Hector's height and 3. Use the variable h to represent Hector's height.

Answers

Answer:

3h=39

Step-by-step explanation:

1.) Keisha's kitchen is shaped like a square. The room has an area of 256 feet squared. Which is the length of one side of Keisha's kitchen?

Also the attachment, and is it rational or irrational?

Answers

Answer:

1.  16 ft

[tex]\sf 2.\quad \dfrac{29}{99}[/tex]

Step-by-step explanation:

Question 1

Formula

Area of a square = s²  (where s is the side length)

Given:

Area = 256 ft²

Substitute the given area into the formula and solve for s:

[tex]\sf \implies 256=s^2[/tex]

[tex]\sf \implies \sqrt{256}=\sqrt{s^2}[/tex]

[tex]\sf \implies s=\pm 16[/tex]

As distance is positive, the length of one side of Keisha's kitchen is 16 ft.

Question 2

Converting a recurring decimal to a fraction

Let x equal the recurring decimal:

[tex]\implies \sf x=0.292929...[/tex]

Create another number with recurring 29s by multiplying the above by 100:

[tex]\implies \sf 100x=29.292929...[/tex]

To solve these two equations and write x as a fraction, subtract the first equation from the second to remove all the recurring digits after the decimal point:

[tex]\begin{array}{r r c l}& \sf 100x &= &\sf 29.292929...\\- & \sf x&=& \sf \phantom{..}0.292929...\\\cline{1-4} & \sf 99x&=& \sf29\\\cline{1-4}\end{array}[/tex]

Therefore:

[tex]\implies \sf 99x=29[/tex]

[tex]\implies \sf x=\dfrac{29}{99}[/tex]

Therefore:

[tex]\sf \implies 0.\overline{29}=\dfrac{29}{99}[/tex]

Learn more about converting recurring decimals to fractions here:

https://brainly.com/question/27788661

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At a department store, a woman's total was $284.00 for 7 items.

Answers

Answer:

40.5714

Step-by-step explanation:

Based on the given conditions, formulate: 284 ÷ 7

Evaluate the equation/expression: 40.5714

get the result: 40.5714

Answer: 40.5714

( 8n - 3n^4 + 10n ^2 ) - ( 3n^2 + 11n ^4 - 7)

Answers

-14n⁴ + 7n² + 8n + 7

Step-by-step explanation:

(8n - 3n⁴ + 10n²) - (3n² + 11n⁴ - 7)

= 8n - 3n⁴ + 10n² - 3n² - 11n⁴ + 7

= -3n⁴ - 11n⁴ + 10n² - 3n² + 8n + 7

= -14n⁴ + 7n² + 8n + 7

Gina let three children pick a toy at target.Annie wanted a doll for 12$ Mandys game cost16$ an Noah’s action figure was 8$ Gina the cashier 45$ how much change did she get back

Answers

Answer:

9 dollars

Step-by-step explanation:

12+16+8 is 36, 45-36 is 9 :)

Use the point-slope formula to write an equation of the line that passes through (-5, -4) and (3, -1).
Write the answer in slope-intercept form (if possible).

Answers

Answer:

point slope form: y + 4 = 3/8 (x + 5)       slope intercept: y = 3/8x - 17/8

Step-by-step explanation:

y2 - y1 / x2 - x1

-1 - (-4) / 3 - (-5)

slope = 3/8

y + 4 = 3/8 (x + 5)

y = 3/8x + b

-1 = 3/8(3) + b

-1 = 9/8 + b

-17/8

y = 3/8x - 17/8

lcm.who knows this?

Answers

It could be the 36th

what time is it in florida im to lazy to look at watch

Answers

Right now it would be 9:44am

Scott has 18 3/4 gallons of gas in his tank. If he uses 3/50 gallons of gas per mile he drives how many miles can he drive before his tank is empty.? Pls help!

Answers

Answer:

Step-by-step explanation:

I’m sorry that i can’t fully help and that i answered it wrong twice i also got stuck. I hope someone else helps you and that you get an a

18 3/4 as an improper fraction is 75/4.

75/4 can be re-written as 1875/100 (multiply both sides by 25)

3/50 can be re-written as 6/100 (multiply both sides by 2)

what is 47+50- __ - 32

Answers

This question doesn't make sense.Are you sure you wrote it correctly?

pls help me pls pls pls

Answers

Answer: I helped you. Troll!

Draw two distinct parallelograms, both with areas of 18 square units. The two parallelograms should not be identical copies of each other.

Answers

Answer:

you would need a square and a rectangle to equal that

Step-by-step explanation:

Help plz !!! Which equation shows that the product of a square matrix A and its identity matrix / is A?

Answers

Answer:

Option D portrays that

Matrix A multiplied by an identity matrix equals Matrix A

Please help for brainliest!​

Answers

D. Is the correct answer. Pls mark me brainliest

Answer:

The answer is 'D'

Step-by-step explanation:


Simplify the algebraic expressions: 9(7x - 7)+(5x - 9)

Answers

the answer would be 68x-72

Answer:

7x-7=0

5x-9=4x

4x(9)=36

x=36

reflection rule over x-axis , (x,y) =(x,-y). reflect over x-axis C(2,3) what is C

Answers

Answer:

(2, -3)

Step-by-step explanation:

Your answer was in the question, just apply the rule that was given (x, -y).

The coordinates of C(2, -3).

What is reflection?

A reflection is a type of transformation that involves flipping a shape, known as the preimage, across a line, known as the line of reflection, to produce a new shape (called the image). You can picture what would happen if you turned the form across the line to graph a reflection.

Reflection is a type of transformation that flips a shape along a line of reflection, also known as a mirror line, such that each point is at the same distance from the mirror line as its mirrored point.

Given:

The Rule for reflection is  (x,y) =(x,-y).

As, the coordinates C(2, 3).

Now, after applying the reflection the coordinate of C become

c(2, 3) ----> C(2, -3).

Hence, the coordinates of C(2, -3).

Learn more about reflection here:

https://brainly.com/question/15487308

#SPJ5

Don’t understand I’ll give u a brainly

Answers

It is the second one (B)

The answer is the second one

Please help. I don't know what I did wrong. I need help with #18. Below me is an image of the #18.

Answers

Answer:

m = -12

Step-by-step explanation:

everything is ok til the 3rd equation line

-15m - 30 = -12m + 6

-30 - 6 = -12m + 15m

-36 = +3m

-36/3 = m--------> 3 x -12 = - 36

-12 = m

sam currently has $150 in a savings account and is saving 10$ per week. write an equation

Answers

Answer:

$850

Step-by-step explanation:

you multiply 7 x 100 because there are 7 days in 1 week. That equals 700 plus 150 equals 850

Sam currently has $150 in a savings account and is saving 10$ per week. equation  y=150+10x represents the situation.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Given, sam currently has $150 in a savings account and is saving $10 per week.

The total amount of savings in dollars is represented by y.

x represents the number of weeks

The equation y=150+10x.

y equal to one hundred and fifty plus ten times of x.

Hence, Sam currently has $150 in a savings account and is saving 10$ per week. Equation  y=150+10x represents the situation.

To learn more on Equation:

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How many songs can you play from 6:00 to 10:00

Answers

120 at most because songs are mostly 2 minutes

Answer:

Using common knowledge each song is about 2 minutes and 50 seconds, so you can listen to about 100 songs, maybe more

Step-by-step explanation:

6-10=4hrs

4 hours divided by 2:50=

4 hours= 280 Minutes, 2:50 can be rounded to 3min, 280/3=93.3333333333

In other words, you can estimate to 94.

So the answer should be around 94

If possible brainliest?

Billy was asked to solve 5(x + 3) = 2x + 6 and explain his steps. Fill in the missing step.

Answers

Answer:

Subtract 15 from both sides

Step-by-step explanation:

Which of the following equations is the translation 2 units down of the graph of y = |x|?
y= lx - 2|
y= |x + 2|
y=|x| - 2
y=|x| + 2

Answers

Answer is: y = | x | - 2

The quotient of C÷E is the quotient of B÷D.
​multiple chose
equal to
less than
greater than
which on is it HELP PLS

Answers

equal to
C / E = B / D
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