28. (03.05 MC) Martin walked away from his school at a constant velocity for the first 30 seconds. He realized that he had to pick up a book from his friend's house which he had already passed. He turned around and walked to his friend's house at a constant velocity for 10 seconds. He stopped at his friend's house for 40 seconds and then walked away from school again at a constant velocity for the next 20 seconds. Which of the following graphs best represents Martin's motion? (5 points) First straight line joins ordered pairs 0, 0 and 40, 25, second straight line joins 40, 25 and 80, 25, and third straight line joins 80, 25 and 100, 10 First straight line joins ordered pairs 0, 0 and 30, 25, second straight line joins 30, 25 and 40, 20, and third straight line joins 40, 20 and 100, 50 First straight line joins ordered pairs 0, 0 and 30, 25, second straight line joins 30, 25 and 40, 20, third straight line joins 40, 20 and 80, 20, and fourth straight line joins 80, 20 and 100, 10 First straight line joins ordered pairs 0, 0 and 30, 25, second straight line joins 30, 25 and 40, 20, third straight line joins 40, 20 and 80, 20, and fourth straight line joins 80, 20 and 100, 50

Answer:

11

Step-by-step explanation:

Answer:

3 by 9 meters

Step-by-step explanation: (3+9)x2 = 24. 3x9=27

Answer:

15 equations

Step-by-step explanation:

Let

Number of equations in the homework = x

There is only a one-word problem

y = amount of time used to solve the word problem

She took 3 minutes to solve each equation, then 7 minutes to solve the word problem if it took her 52 minutes total,

Total = 3x + y

52 = 3x + 7

Subtract 7 from both sides

52 - 7 = 3x + 7 - 7

45 = 3x

Divide both sides by 3

x = 45 / 3

= 15

x = 15 equations

Therefore, she solved 15 equations

Answer:

same but like 123

Step-by-step explanation:

Answer:

the slope represents minutes per miles.

Step-by-step explanation:

the other 3 are wrong

Answer:

$900

Step-by-step explanation:

Wages paid = $20 per hour

Transport allowance paid = $20 per day

Number of hours worked each day = 8 hours

Number of days worked each week = 5 days

To find:

Total amount paid in one week = ?

Solution:

First of all, let us find the total number of hours worked in one week.

8 hours a day and 5 number of days.

Therefore, total number of hours worked in one week = 8 [tex]\times[/tex] 5 = 40 hours

Total wages paid as per 40 hours = 40 [tex]\times[/tex] 20 = $800

Now, for these 5 days, transport allowances are paid $20 for each day.

Therefore total transport allowance = $20 [tex]\times[/tex] 5 = $100

Total wages paid = Wages as per 40 hours + Transport allowance = $800 + $100 = $900

Answer: The odds of getting tails twice in a row are 1/2 * 1/2 = 1/4. So 25% of the time you'll get heads twice in a row. But, if you've already flipped a coin 99 times, and gotten heads each time, then the odds of your next flip being heads is still just 50:50.

Step-by-step explanation:

Answer:

answer is B

Step-by-step explanation:

Answer:

2$

Step-by-step explanation:

If you buy 8 cans of corn and it cost you 16 dollars for all of the cans Then you can divide

Divide 16 by 8

16 divided by 8 =2

The cost of each can of corn is 2 dollars

Ans. 2

Step-by-step explanation:

Use directly proportional

X1/Y1=X2/Y2

8/16=1/X

and then solve for x

Answer:

The answer is A. y =32x + 15

Step-by-step explanation:

The reason behind this is the rate. The amount of money each month is the slope (m). The additional fee would be the b.

Answer:

i believe the answer is c

Answer:

6x6=36

Step-by-step explanation:

Answer: The answer is 6

Step-by-step explanation:

the way you find the answer is you divide 36 by 6. the reason why is the answer of 36 divided by six is tyhe other number you need to get to 36.

I hope this is not to confusing. Can you please give me branilyest

Answer:

Was B the correct answer?

I thought it was B as well.

Answer: The answer is -50

because 80 + -50 = 30 and 30 + -30= 0              .

The required difference when (-5x + 4y) is subtracted from (7x + 9y) in simplest terms is 12x + 5y.

Given that,
To find an expression that represents the difference when (-5x + 4y) is subtracted from (7x + 9y) in simplest terms.

In mathematics, it deals with numbers of operations according to the statements.

The process in mathematics to operate and interpret the function to make the function simple or more understandable is called simplifying and the process is called simplification.

= 7x + 9y - (-5x + 4y)
= 7x +9y + 5x - 4y
= 7x + 5x + 9y -4y
= 12x + 5y

Thus, the required difference when (-5x + 4y) is subtracted from (7x + 9y) in simplest terms is 12x + 5y.

Learn more about arithmetic here:

brainly.com/question/14753192

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Answer:

2.5

Step-by-step explanation:

50÷4-10

50=(4x)-10

Equation:

(4*n)=50

Solution:

(4*n)-10=50

(4*n)-10-10=50-10

(4*n)=40

4*10=40

n=40

Answer:

smash hit?

Step-by-step explanation:

Answer:

2x - 5 = (1/2)

4x - 10           [multiply by 2]

 x - 10 = -13                 [subtract 3x from both sides]

  x = -3                        [add 10 to both sides]

Step-by-step explanation:

The required number would be 34 which is determined by the phrase "five less than twice the value of a number is equal to three times the quantity of four more than one-half the number"

Algebra is the analysis of mathematical representations, while logic is the manipulation of those symbols.

When broken down, these sorts of statements are not intimidating. First, consider "five less than twice the value of a number."

"Twice the value of a number" is simply 2x.

"Five less" is simply -5, so for the first part we have (2x-5)

Examine the second section next. "Three times four times more than one half the number."

"Three times the quantity" simply indicates "three times something."

4 + "one half the number" or 4 + (1/2)x is "the quantity of four more than one half the number."

So the second part is simply 3(4+x/2).

Finally, we complete the equation, (2x-5) = 3(4+x/2) and solve for x.

2x-5 = 12 + (3/2)x

2x-(3/2)x = 17

x/2 = 17

x = 34

Therefore, the required number would be 34.

To learn more about the Algebra link is given below.

brainly.com/question/953809

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Answer:

The answer is 9!

Step-by-step explanation:

Ik this is late but for people in the future, the answer is definetly 9.

180 = 6x + 6x + 8x

Now substituting 9 in for the x values;

180 = 6(9) + 6(9) + 8(9)

180 = 54 + 54 + 72

180 = 180

BYE!

Answer:

(-1,4)

Step-by-step explanation:

First lets put the two equations into y=mx+b format by subtracting 2x and 4x to the right side of their equations.

y=-2x+2

y=-4x+0

Now you can put this into a system of equations, but you can also plug in the coordinates to see if both equations are equal. I will show system of equations solution.

-2x+2=-4x, solve this by adding -2x to the right side so that the 2 is by itself.

Now you have 2=-2x. Divide by -2 to get the x by itself, now you have x=-1. Plug this back into one of the equations, so y=-4x would be y=-4(-1), so y=4.

Answer:

-1,4

hope that helps you

Answer:

lol 96

Step-by-step explanation:

Answer:8ft

Step-by-step explanation: easy math. Glad i could help.

Answer:

i think 2

Step-by-step explanation:

division

12/2= 6

4/2= 2

Hope this was right! (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

Have a nice day! ( ﾟдﾟ)つ Bye

Answer:

y = 14

x = 10

Step-by-step explanation:

Here, we want to get the value of x and y

Since all sides are equal, then the measure of each angle is 60 degrees

Since AC = 14

y is also 14

Also;

Since each angle is 60

Then;

6x = 60

x = 60/6

x = 10

Answer: is 75%

Step-by-step explanation:

Because you have to make sure you count each square then

Answer:

y = -5/4x + 5

Step-by-step explanation:

the slope is down 5 over 4 and it crosses the y-axis at 5

Answer: There are 152 adults and 87 children.

Step-by-step explanation:

Let x= Number of adults

y= Number of children

As per given, we have

x+y = 239                 (i)

15x+5.50y= 2758.50              (ii)

Multiply 5.50 on both sides of (i) , we get

5.50x+5.50y=1314.5             (iii)

Subtract (iii)  from (ii), we get

9.5x = 1444

⇒  x = 152

Put value of x in (i) , we get

152+y=239

⇒ y= 239-152

⇒ y= 87

Hence, there are 152 adults and 87 children.

Answer:

58.25

Step-by-step explanation:

116.5 / 2

= 58.25

Hope this helps!!

58.25+58.25

Those are the two numbers that add up to that number (116.5)

Btw there are also MULTIPLE numbers that add up to 116.5, I'm just putting the one that makes the most sense.

(｡ŏ﹏ŏ)

Miri

Answer:

The slop in the line is 3

Step-by-step explanation:

Answer:

-2 I think this is the answer hope it helps

Step-by-step explanation:

Answer:

what are you trying to solve?