Mathematics High School

Nelson covered the first 20 miles in 2 1/2 hours. What was his
average speed in miles per hour?

Answers

Answer 1

Answer:

= 8 mp /h

Step-by-step explanation:

Average speed=total distance/total time

=20/2.5

=8 mp/h

Answer 2

Answer:8mp/h

Step-by-step explanation:

Related Questions

Find the slope of the line going through the points (11,5) and (20,5)

Answers

So remember the formula for working out the slope:

(y2 - y1) ÷ (x2 - x1)

We already know two points:

(11, 5) and (20, 5) (Remember points are like (x, y)


Therefore y2 = 5 and y1 = 5 and x2 = 20 and x1 = 11

Substitute these into the formula from the start:

(y2 - y1) ÷ (x2 - x1)
(5 - 5) ÷ (20 - 11)
0 ÷ 9

And we can determine the slope is equal to 0 as 0 ÷ 9 = 0

the sum of 8 times a number and 5 is 37. find the number

Answers

The number is 4 because: 8 x 4 = 32 + 5= 37

A line has a slope of 1/8 and passes through the point (0, 0). What is its equation in
slope-intercept form?

Answers

Answer:

[tex]y=\frac{1}{8} x\\[/tex]

Step-by-step explanation:

Work out the mean for the data set below:
7.7, 1.6, 5.3, 4.9, 2.1

Answers

Answer:

4.32

Step-by-step explanation:

7.7 + 1.6 = 9.3

9.3 + 5.3 +2.1 = 16.7

16.7 + 4.9 = 21.6

21.6 ÷ 5 = 4.32

Hope this helps plz mark brainliest if correct :D

Help pls I will give brainliest! frfr

Answers

Answer:

1255 that is it so bye bye

PLEASE HELP THIS IS DUE TODAY EXPLAIN IF YOU CAN OR EXPLAIN IF YOU WANT.

Answers

Answer:

2.1.25

Step-by-step explanation:

2: 1.25

3:125.0

Answer:

1.25x102 is 125 the next one is 1250 next one is 125000

Step-by-step explanation:

can i have brainlest please???

Points (−6, 3) and (−6, −3) on the coordinate grid below show the positions of two dogs at a park:

A coordinate plane is shown. There is a point at negative 6, 3 labeled Dog 1. There is a point at negative 6, negative 3 labeled Dog 2.

Which statement best describes the relationship between the positions of the two players?

A. Dog 1's position is Dog 2's position reflected across the y-axis; only the signs of the y-coordinates of Dog 1 and Dog 2 are different.

B. Dog 1's position is Dog 2's position reflected across the x-axis; only the signs of the y-coordinates of Dog 1 and Dog 2 are different.

C. Dog 1's position is Dog 2's position reflected across the x-axis; only the signs of the x-coordinates of Dog 1 and Dog 2 are different.

D. Dog 1's position is Dog 2's position reflected across the y-axis; only the signs of the x-coordinates of Dog 1 and Dog 2 are different.

Answers

9514 1404 393

Answer:

  B.  Dog 1's position is Dog 2's position reflected across the x-axis; only the signs of the y-coordinates of Dog 1 and Dog 2 are different.

Step-by-step explanation:

It is generally useful to compare the answer choices to the problem statement. Here, the problem statement gives two points with identical x-coordinates and opposite y-coordinates.

Any answer choice saying the signs of the x-coordinates are different can be rejected immediately.

It also can be useful to draw yourself a picture. If you plot the points, you can see that the x-axis bisects them. The reflection is not across the y-axis, so any answer choice saying it is can be rejected.

The appropriate description is ...

  B. Dog 1's position is Dog 2's position reflected across the x-axis; only the signs of the y-coordinates of Dog 1 and Dog 2 are different.

1. What would be the first step in solving the equation below for r ?
A = 4r
a add 4 to both sides
b subtract 4 to both sides
c divide 4 to both sides
d multiply 4 to both sides

Answers

The first step into solving this equation should be, c dividing by both sides

Answer:

C; multiply 4 to both sides

Step-by-step explanation:

When you want to solve for a variable, you always want to isolate it.

So, to move 4, we have divide:

[tex]\frac{A}{4}[/tex] = [tex]\frac{4r}{4}[/tex].

The 4 in 4r is "one'd" out, and now we have 1r, or simply r.

Now, we have r = A/4

By the end of the first quarter of a football game, Al had gained 62 yards and had lost 21 yards. Al Lost an additional 15 yards and gained 18 yards in the second quarter. Replacing represents his total yardage for the first half of the game

Answers

Answer:

Y = Q + 44

Step-by-step explanation:

We can easily write an equation for this scenario by making a variable for the unknown number of yards at the start of the first quarter (which would be represented by the letter Q) and then adding or subtracting the gained/lost yards in the second quarter. This would give us the total yardage for the first half of the game which will be represented by the variable Y.

Y = Q + 62 - 21 - 15 + 18 ... we can simplify this by adding and subtracting the given values

Y = Q + 44

What is the total cost of a $350 laptop with a 8% tax rate

Answers

Answer:

It should be $378. sorry if I am wrong.

Step-by-step explanation:

Liam will spin the pointer one time what is the probability the pointer will land on red

Answers

Answer:

3/8

Step-by-step explanation:

What is the decimal form of the fraction?

Answers

Answer:

0.3182

Step-by-step explanation:

0.3182 is a decimal and 31.82/100 or 31.82% is the percentage for 7/22.

A. 3/5
B. -3/5
C. -5/3
D. 5/3

Answers

Answer:

your answer would be A I think

Answer:

i did not understand but i think its

-3/5 i'm not sureeeeeeeee

Step-by-step explanation:

pls help i really need it​

Answers

Answer:

I think if you look up the equation on google there is a calculator and you may get some of your answers there

Step-by-step explanation:

A car travels a distance of 104 miles in 4 hours. What is the speed in miles per hour

Answers

Answer:

26

Step-by-step explanation:

104 miles

4 hours

so do   104/4, then you get 26

so 26 miles per an hour

Speed of the car is 26 miles per hour.

What is speed?

Speed can be measured as the distance traveled by a body in a given period of time. The SI unit of speed is m/s.

Speed formula can be used to find the speed of objects. The formula for the speed of a given body can be expressed as,

Speed = Distance ÷ Time

Given,

Car travels distance = 104 miles

Time taken to travel 104 miles = 4 hours

Speed = distance/ time

Speed of car

= 104/4

= 26 miles per hour

Hence, 26 miles per hour is the speed of car.

Learn more about speed here:

https://brainly.com/question/17661499

#SPJ3

Can someone help me understand proofs?

Answers

Angles K and 3 are congruent because they’re vertical angles. Then, angles 3 and 1 are congruent. The supplements of angles 3 and 1 are congruent because supplements of congruent angles are congruent. Both lines are parralel because or the arrangement of the angles. That is the best way I can describe it.

Answer:

the answer is 1

Step-by-step explanation:

because I did 127+53=180

then you have to subtract 53 from each other 180-53=127

then you have to divide 127 and 127

then you go to gave you last answer is 1

The fox population in a certain region has a continuous growth rate of 6 percent per year. It is estimated that the population in the year 2000 was 19100.
(a) Find a function that models the population t years after 2000(t=0 for 2000).
Hint: Use an exponential function with base e.
Your answer is P(t)=

(b) Use the function from part (a) to estimate the fox population in the year 2008.
Your answer is (the answer must be an integer)

Answers

Answer

a)

[tex] P(t) = 19100. e^{0.06t} [/tex]

b) P(8) =30866

Step-by-step explanation

Use formula:

[tex] P(t) = P. e^{rt} [/tex]

a)

Here, P = 19100

r = 6% = 0.06

[tex] P(t) = 19100. e^{0.06t} [/tex]

b) t = 2008 - 2000 = 8

[tex] P(8) = 19100. e^{0.06\times 8} [/tex]

[tex] P(8) = 19100. e^{0.48} [/tex]

[tex] P(8) = 19100\times 1.616\\\\

P(8) = 30,865.6\\\\P(8) \approx 30,866[/tex]

The Outside Club went on a 20-mile backpacking trek in Yellowstone National Park. They covered 6 1/4 mi the first day and 8 1/2 mi the second day. How much farhter did they have to go?

Answers

Answer:

5 1/4 miles

Step-by-step explanation:

Adding 8 1/2 and 6 1/4 together, you should get 14 3/4. Subtract this from 20, and you get 5 1/4 miles.

9. What four consecutive integers have a sum of -34?

Answers

Given,

The four numbers are consecutive

The numbers are

x

x + 1

x + 2

x + 3

Sum = -34

x + (x + 1) + (x + 2) + (x + 3) = -34

x + x + 1 + x + 2 + x + 3 = -34

(x + x + x) + (1 + 2 + 3) = -34

3x + 6 = -34

3x = -34 - 6

3x = -40

x = -40/3

Steven is making some party favors for his birthday party. He has 96 cars and 80 game cards. He wants each party's favor to be the same, and he wants to use all of the cars and game cards. How many party favors can he make? How many cars and game cards will be in each bag?

Answers

Answer:

He can make 16 party favors.

There will be 6 cars in each bag.

There will be 5 game cards in each bag.

Step-by-step explanation:

96/16=6

80/16=5

3. Rewrite the expression as simply as you can:
3x + 11y - 2x - 4y

Answers

Answer:

x+7y

Step-by-step explanation:

First off, lets split the question into both x and y.

3x - 2x for the x

11y - 4y for the y

You can solve both of them to get x + 7y

3x - 2x = x

11y - 4y = 7y

Then, add them back up and get x + 7y

Answer:

x+7y

Step-by-step explanation:

3x + 11y -2x - 4y

(3x) + (11y) + (-2x) + (-4y)

(3x) + (-2x) = x

(11y) + (-4y) = 7y

3x + 11y -2x - 4y = x + 7y

4.) Are imperfect square roots rational or irrational?

Answers

Answer:

Irrational

Step-by-step explanation:

Answer:

Real numbers have two categories: rational and irrational. If a square root is not a perfect square, then it is considered an irrational number. These numbers cannot be written as a fraction because the decimal does not end (non-terminating) and does not repeat a pattern (non-repeating).

Step-by-step explanation:

Hope this helps - Good luck ^w

HEY CAN ANYONE PLS ANSWER DIS MATH QUESTION!!!

Answers

Answer:

23

Step-by-step explanation:

34-29.99=4.01

4.01/17=23

pls give me brainliest

Answer:

It would be 23

Step-by-step explanation:

Cual es el valor de x si 3(4x-1)=9x-6

Answers

9×6=59 59-6=

59

-6

----

03

♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡☆♡♡♡♡♡♡♡₩€£+×÷=<>{}[]]espero ter te ajudado meu amigo de♡♡♡♡♡♡♡ fui é essa ai a aconta thau

I don’t speak Spanish but it should be x=-1

Math people pls help
Easy points

Answers

Answer:

-12

Step-by-step explanation:

-4 x 3 = -12

give brainliest pls

Answer:

- 12

Step-by-step explanation:

y= 3x

y= 3(-4)

y= -12

Mason inspects 73.5 phones each day. He must inspect no fewer than 1,470 phones each month. How many days will Mason need to work to reach his goal by the end of the month.

Answers

Answer:

20 days

Step-by-step explanation:

We have 31 days in one month

Mason must have inspected 1470 after 31 days

He inspects 73.5 phones per day. Hence,

73.5 phones =>1 days

1470 phones =>

1470 ÷ 73.5 => 20 days

Hence, Mason will need 20 days to reach his goal.

36:60 and 6:10 are they equivalente

Answers

Yes they are equivalent

Answer:

yes they are equivalent.

Step-by-step explanation:

6x6=36

10x6=60

by using the same factor we can tell that they are equivalent. We can also get to the answer by dividing 36 and 60.

PLEASE HELP DUE IN 20

Answers

Okay what’s the question tho?!

Answer:

-4/3 if its asking for slope

Step-by-step explanation:

To get this i did change in y over change in x.

i took the first two pairs.

-4-(-7)=3

8-12=-4

Triangle ABC is isosceles with segment congruent to segment BC. The measure of angle degrees. Find the measure of angle A!!!

Answers

All the three angles situated within the isosceles triangle are acute, which signifies that the angles are less than 90°. The sum of three angles of an isosceles triangle is always 180°, which means we can find out the third angle of a triangle if the two angles of an isosceles triangle are known.

Find the dot product of the vectors u and v, where u=12 and v=7, and the angle between is theta=55

A. u x v=68.81
B. u x v=48.18
C. u x v=10.90
D. u x v=2.87

Answers

Answer:

The answer is B

Step-by-step explanation:

Answer:

Option B is correct.

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