Alexander spent a total of 12.5 hours on a science project for the Science Fair. His sister, Laura, spent 16.6 hours on a science project. How many more hours did Laura spend on her project than Alexander spent on his?

Answers

Answer 1

Answer:

4.1 I think

Step-by-step explanation:

I just subtracted in my head

Answer 2

Answer:

4.1 hours

Step-by-step explanation:

Laura spent 4.1 more hours on her project than Alexander spent on his. If we split each number into 2 parts (like this: 12.5 -> 12 and .5; 16.6 -> 16 and .6) then we can subtract 12 from 16 and .5 from .6 to get 4 and .1. we add those together to get 4.1


Related Questions

What would the set notation for the domain and range of the function, (-3, 6), (-2, -3), and (-1, 6)

Answers

Answer:

Domain: {-3, -2, -1}

Range: {-3, 6}

General Formulas and Concepts:

Domain is the set of x-values that can be inputted into function f(x). Range is the set of y-values that are outputted by function f(x).

Step-by-step explanation:

Step 1: Define

(-3, 6)

(-2, -3)

(-1, 6)

Step 2: Identify x-values

x = -3, -2, -1

Step 3: Identify y-values

y = -3, 6, 6

Help me with this please

Answers

Answer:

The First Table

Step-by-step explanation:

The y-values increase inconsistently, while the other tables are constant.

In the model for exponential growth or decay, the amount, or size, at t=0 is represented by __ the amount, or size, at time t is represented by __

Answers

1. A0 (small 0)
2.A0^ekt

In the model for exponential growth or decay, the amount, or size, at t=0 is represented by  [tex]N=N_{0}[/tex]. and at time t is represented by [tex]N=N_{0}e^{kt}[/tex]

Let us consider that [tex]N_{0}[/tex]  is the initial amount and N is represent that amount after growth or decay in time t .

Model for exponential growth or decay is,

                                 [tex]N=N_{0}e^{kt}[/tex]

Amount at t=0 is,

                             [tex]N=N_{0}e^{k*0}=N_{0}[/tex]

Learn more:

https://brainly.com/question/12626186

-4-5(2x -4) = 76
-6
9
-4
7

Answers

9514 1404 393

Answer:

  x = -6

Step-by-step explanation:

-4 -10x +20 = 76 . . . . . eliminate parentheses

-10x = 60 . . . . . . . . . . . subtract 16

x = -6 . . . . . . . . . . . . . . divide by -10

Solve for x: 5x + 15 = 28​

Answers

Answer:

x= 2 [tex]\frac{3}{5}[/tex]

Step-by-step explanation:

5x + 15 = 28

5x + 15 (-15) = 28 (-15)

5x = 13

5/5x = 13/5

x= 2 [tex]\frac{3}{5}[/tex]

Answer:

x=2.6

Step-by-step explanation:

1)write equation

2)put line through equal sign(if on paper, its way easier to put a line through.)

3)subtract 15 from 15

4)subtract 15 from 28(13)

If it were to be a negative 15 youd add 15. Never add or subtract to a number with a letter!

5)what's left over is 5×=28 divide 5 on both sides.

6)13÷5=2.6

whats the area of a circle if the diameter 6

Answers

Answer:

28.27

Step-by-step explanation:

Answer:

18.84

Step-by-step explanation:

6x3.14 = 18.84. multiply by pi

A downtown parking garage charges individuals to park a car according to the following rate schedule: $1.00 for the first hour, then $2 for each subsequent hour until the daily maximum charge of $9.00 is reached. These charges are represented in the graph below.

which of the following is true?

Answers

Answer:

In the graph, a white dot means that the value does not belong to the set, while the colored dot means that the value does belong.

Let's analyze each statement (from top to bottom)

1)The x-axis represents the number of hours, and the y-axis the charge.

Then let's find x = 2.

You can see that there is a colored dot at y = $3, and a white dot at y = $5.

Then the price for exactly two hours is $3, not $5.

Then this first statement is wrong.

2) You can assume that 20 minutes is in between x = 0 and x =1, then from that point, you can see that the equivalent value of y is $1. Then the individuals who park only for 20 minutes will be charged with $1,

This statement is wrong.

3) 1 hour and 15 minutes is in between 1 and 2 hours.

And as you can see, for 1 < x ≤ 2, the price is $3. Then this statement is correct.

4) Here we have x > 4.

In the graph you can see that all values of x > 4 are mapped into the black part of the graph, which is equivalent to the maximum charge of $9.

Then this statement is correct.

What is the following product?
(5-12-4/5)(512-43
PLEASE HELP ):

Answers

Answer:

-3658.2

Step-by-step explanation:

If 3x + 7 = 5 for some value of x, then what does the expression 6x +17 equal for the same value of x?

Answers

Answer:

13

Step-by-step explanation:

First, double the first equation.

If 3x+7=5, then 6x+14=10

Since they are asking for 6x+17, the answer is 10+3=13

Hope I helped!

13 hope this helps!!!!

how many eights are there in three and a quater​

Answers

6 .. hope that answers ur question :)

Is (2, 2) a solution of the inequality y < 3x - 5?

Answers

Answer: it’s not a solution or C

Step-by-step explanation:

the given point is (2,2) there is a x value and a y value

so 2 < 3(2)-5 *we know 3*2 is 6 and 6-5 is 1*

2 does NOT equal to 1

Answer:

Third option, It is not a solution.

Step-by-step explanation:

Please answer this question.... You enter a room. 2 dogs, 4 horses, 1 giraffe, and a duck are lying on the bed. 3 chickens are flying over a chair. How many legs are on the ground?​

Answers

Answer:

36 legs

Step-by-step explanation:

Including the chair and yourself

6. You and the legs of the chair.

LMC given numbers 60 and 80​

Answers

Question:LCM of 60 and 80

240 is answer

LCM : least common factor
The least common multiple is 240.

Mario paid $30 to activate his cellular phone plus $50 per month. Type an equation:_

Answers

Answer:

50x + 30

Step-by-step explanation:

50 is the amount per month and x is how many months he's paying. If he's paying for 5 months then you replace x with 5 so on and so forth. the + 30 is the amount he paid to active his phone

Answer:

pa rompa pero no poden con mi pom pom con pom pom con pom pom

Step-by-step explanation:

Which equation has the solution x=3

Answers

Answer:

6-x=3  4-x=1 96 divided by x = 32

Step-by-step explanation:

Hope this helped! If it did, please mark me as brainilest and give a shot at my 100 points homework/puzzle. Here is the link: https://brainly.com/question/19021808 Thanks!

You burn 4 Cal/min walking and 10 Cal/min running. You walk 10 to 20 min each day and run 30 to 45 min each day. You never spend more than an hour running and walking together. How much time should you spend on each activity to maximize the number of Calories you burn? Will you have exercised enough to burn off a 500-Calorie meal? A. 50 minutes running, 10 minutes walking; yes. B. 45 minutes running, 15 minutes walking; yes. C. 40 minutes running, 20 minutes walking; no. D. 30 minutes running, 30 minutes walking; no.

Answers

Answer:

I don’t know how to do the explanation but the answer is 15 min waking and 45 running. I got it right on the test

Step-by-step explanation:

Can someone help me plz

Answers

Answer:

i think the answer is 7

The answer should be 7

Solve for f: (-1/8)f - (3/4) -
(1/4)f = 11

Answers

Answer: The answer is f= –31 1/3.

Step-by-step explanation: To solve for f, you’ll need to simplify the both sides of the equation, and then isolating the variable. Use online advanced calculators to calculate the equation to view all the steps.

Find the product. Enter your final answer as a simplified fraction.
-1/8•7•2/5=

Answers

Answer:

-7/20  

Step-by-step explanation:

Answer:

-1/140

Step-by-step explanation:

-1/8*7*2/5

-7/8*2/5

-7/20

What is the exact value of sin(75°)?

Answers

Step-by-step explanation:

sin 75°: Now using the formula for the sine of the sum of 2 angles, sin(A + B) = sin A cos B + cos A sin B, we can find the sine of (45° + 30°) to give sine of 75 degrees.

Answer:

D.)

Step-by-step explanation:

Edge

Which transformations map the strip patterns onto itself?

Answers

I think it’s b, a horizontal translation and a 180 degree rotation

Answer: D.

A horizontal translation and a glide reflection.

I don't know how to solve this.Please help!
3^x=2

Answers

So 3^X= 2 is an exponential equation. The inverse of an exponential in ln. so take ln of both sides to solve.

Another way is to change the exponential into a log equation
So that would be log with base 3 to the power of 2 equals x.

A Ferris wheel can accommodate 55 people in 30 minutes. How many people could ride the Ferris wheel in 5 hours? What was that rate per hour?

Answers

Answer:

i believe your answer is 550 people, which would be 110/hr

Step-by-step explanation:

Hope that helps!

Graph the greatest integer, f(x) = [x]

Answers

Answer:

Step-by-step explanation:

Multiply 8674 x 678 is what

Answers

Answer:

5880972

hope it helps..

true or false ------- y-intercept is where a point crosses the x-axis

Answers

Answer:

false

Step-by-step explanation:

that would be x-intercept

The y -intercept is the point where the graph crosses the y -axis. So, the statement is true. ANSWER:
True

Let V=ℝ2 and let H be the subset of V of all points on the line 4x+3y=12. Is H a subspace of the vector space V?

Answers

Answer:

No, it isn't.

Step-by-step explanation:

We have [tex]V=IR^{2}[/tex] and let [tex]H[/tex] be the subset of [tex]V[/tex] of all points on the line

[tex]4x+3y=12[/tex]

We need to find if [tex]H[/tex] is a subspace of the vector space [tex]V[/tex].

In [tex]IR^{2}[/tex] all the possibilities for own subspace of the vector space [tex]IR^{2}[/tex] are :

[tex]IR^{2}[/tex] itself.The vector [tex]0_{IR^{2}}=\left[\begin{array}{c}0&0\end{array}\right][/tex]All lines in [tex]IR^{2}[/tex] that passes through the origin  (  [tex]0_{IR^{2}}=\left[\begin{array}{c}0&0\end{array}\right][/tex]  )

We know that [tex]H[/tex] is the subset of [tex]IR^{2}[/tex] of all points on the line [tex]4x+3y=12[/tex]

If we look at the equation, the point [tex]\left[\begin{array}{c}0&0\end{array}\right][/tex] doesn't verify it because :

[tex]4x+3y=12\\4(0)+3(0)=12\\0=12[/tex]

Which is an absurd. Therefore, [tex]H[/tex] doesn't contain the origin (and [tex]H[/tex] is a line in [tex]IR^{2}[/tex]). Finally, it can't be a vector space of [tex]V=IR^{2}[/tex]

5 + x + 3 + 2x = -2(4x - 15) show the work

Answers

Answer:2

Step-by-step explanation:

sorry if it seems messy

Use a calculator, spreadsheet, or another tool to solve for the unknown sides of the given right triangle. The length of the hypotenuse is 12. a is the length of the side opposite the 10 degree angle and b is the length of the opposite angle B. Round your answers to four decimal places.

Answers

Answer:

27

Step-by-step explanation:

2 TIMES 3

The length of the side a and b is 2.0837 and 11.8176 respectively.

Length of side a and b to be determine, hypotenuse is 12 and a is the length of the side opposite the 10 degree angle and b is the length of the opposite angle B.

What is trigonometry?

Trigonometry is branch of mathematics that helps in elevation and angle problems.

Let assume that one angle of triangle is right angle.
So in right angles triangle,
hypotenuse = 12
cos10 =  length of b /12
length of b = 12 cos10
length of b = 11.8176

Now,
sin 10 =length of a/ 12
length of a = 12 sin10
length of a = 2.0837

Thus, the length of the side a and b is 2.0837 and 11.8176 respectively.

Learn more about trigonometry here:
https://brainly.com/question/26719838

#SPJ2

8 less than the length L

Answers

Answer:

L-8=?

Step-by-step explanation:

Other Questions
helpppppp meeee!!!!!!! mention the importance ofNepalese legal system . Just look at the picture asap plz What kinds of questions should you ask during a collaborative discussion?questions that encourage debatesquestions on which everyone must agreequestions that clarify other peoples responsesquestions that require a yes or no answer Instructions: Solve the following literal equation.Solve P-2w/2= l for P. Solve -11h 27 16h for h. HELP ASAP ! NEEDANSWERS 1. Select the Volatile Memory*RAMROMSecondary Memory2. A Malware is a*program that enables the computer to run faster.software in a computer that fights against VIRUS.Harmful software to the computer3. The full form of LAN is*Locally Area NetworkLocal Area NetworkLocal Area Networking4. The smallest Unit of data is called as*BitByteMegabyte5. The permanent memory built in your computer is*MonitorROMRAM6. Which one of the following is a VIRUS*Morris MalwareILOVEYOU MalwareMellisa malware7. Which of the following storage devices are found inside the computer?*Hard disk driveSSS DriveMagnetic Tape8. The full form of ROM is*Read Only MemoryReading Only MemoryRead On Memory9. Choose the Highest Unit of Data from the following.*MegabyteGigabyte fill in the blank pls plzzzzzzzzzzzzzzzzzzzzzzzz helpppppppppp Canada was able to increaseits wheat supply becauseof immigration.TrueFalse A freight train has a mass of 3.8 x 10^7 kg. The locomotive can exert a force of 6.5 x 10^5 N to pull the train. Required:a. How long does it take the train to go from rest to 50 km/hr? b. If there is air resistance of 2.0 x 10^5 N, what is the acceleration of the train, and how long does it take the train to go from rest to 50 km/hr? 3. Define vocabulary words below and use them in sentences. 1. comedy 2. democracy 3. drama 4. fable 5. monarchy 6. myth 7. oligarchy 8. oracle 9. oral tradition 10. Ritual 11. tragedy EASY PLEASE HELP PLEASE HELP 15 POINTS...PLEASE HELP Write an equation that represents the following word problem.Jackie has four more apples than Mark and together they have twelve apples. How many apples do each Jackie and Mark have?a + (a - 4) = 12a + (a + 4) = 12both of these would workneither of these would work Give me an example of a persuasive essay. ExplainSubject: English My eyes are red in color how do I change it back to the original color Will give brainliest if correct. A sample of 5 months of sales data provided the following information: Month 1 2 3 4 5 Units Sold 97 120 88 97 93 Required:a. Develop a point estimate of the population mean number of units sold per month (to 1 decimal). b. Develop a point estimate of the population standard deviation (to 2 decimals). who wrote flowers for algernon