Mathematics College

Madeline drove 180 miles in 4 hours. If she drove at a constant rate, how far
did she travel in one hour?
PLSSS HELP

Madeline Drove 180 Miles In 4 Hours. If She Drove At A Constant Rate, How Fardid She Travel In One Hour?PLSSS

Answers

Answer 1

Answer:

45

Step-by-step explanation: divide 180 by 4

Related Questions

can someone please do all of these im marking brainliest !!!

Answers

Yes ofc, but I don’t see anything like a question or a picture of anything.

A distribution of values is normal with a mean of 114.5 and a standard deviation of 23.
Find P47, which is the score separating the bottom 47% from the top 53%.
P47 =
Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

Answers

Answer:

The score separating the bottom 47% from the top 53% is 112.8

Step-by-step explanation:

Let X denote the random variable whose values are normal with a mean of 114.5 and a standard deviation of 23.

Compute the 47th percentile as follows:

[tex]P(X<x)=0.47\\\\P(\frac{X-\mu}{\sigma}<\frac{x-114.5}{23})=0.47\\\\P(Z<z)=0.47[/tex]

The corresponding z-value is,

z = -0.075

*Use the z-table.

Compute the value of x as follows:

[tex]\frac{x-114.5}{23}=-0.075\\\\x=114.5-(0.075\times 23)\\\\x=112.775\\\\x\approx 112.8[/tex]

Thus, the score separating the bottom 47% from the top 53% is 112.8

Solve for x. x/2≥−4 PLEASE HELP

Answers

Answer:

x is greater than or equal to -8

Step-by-step explanation:

multiply by 2 to get the x alone, and you have your answer.

What is the value of – 15 – 9 + (– 7)?

Answers

Answer: the value of  – 15 – 9 + (– 7) is -31

Step-by-step explanation:

-15-9=-24

-24+(-7)=-31

Answer: I

believe it is -31

Step-by-step explanation:

calculator


It took Isabel 9 hours to complete 2 paintings. At this same rate, how much time, in hours, will it
take Isabel to complete 3 paintings?
hous

Answers

Answer:

13.5 hours

Step-by-step explanation:

9hrs= 2 painting

9 divided by 2= 4.5

9+4.5= 13.5

From the set {5, 7, 40}, use substitution to determine which value of x makes the equation true.

7(x + 35) = 280

A. 7
B. none of these
C. 40
D. 5

Please help me !!!!

Answers

Answer:

I am in middle school

Step-by-step explanation:

Answer:

D. 5

Step-by-step explanation:

7 (x + 35) = 280

x + 35 = 280/7

          = 40

x = 40 - 35

  = 5

So it the correct option is D. Sorry I am late!!

Find the area for the figure below. Use 3.14 for pi.

Answers

Answer:

1228.31 mm^2

Step-by-step explanation:

The area for the circle is

(20^2*3.14)/2

The area for the rectangle

30*20

Total area

1228.31

Which equation represents the slope-intercept form of the line below?
y-intercept = (0,-5)
slope = 1/4
A. y = 1/4x-5
B. y=5x-1/4
C. y=1/4x+5
D.y=5x+1/4

Answers

Answer:

A. y= 1/4x-5

Step-by-step explanation:

The slope is 1/4 and the y- intercept is -5.

2. Simplify:
a. 2(4x + 5y)
b. -3(2x + 4y)
PLEASE HURRY

Answers

8x + 10y
-6x + -12

Hope this helps! :)

a. 2(4x + 5y)

(2×4)x + (2×5)y

= 8x + 10y

b. -3(2x + 4y)

(-3×2)x + (-3×4)y

= -6x - 12y

[tex]\frac{3}{4}[/tex]

Answers

Answer:

0.75

Step-by-step explanation:

g(x) = x + 4
f(x)= x + 3
Find (g•f)(x)

Answers

Answer:

g[f(x)] = x + 7

Step-by-step explanation:

g[f(x)] = ( x + 3) +4

= x + 7

How much will 12 shirts cost?? Help!!

Answers

Answer:

I believe the answer would be 240

Step-by-step explanation:

If you divide 60 by 3 you will get 20 which is how much one sweatshirt will cost. Then you multiply 12 by 20 than you should get 240 which might be the answer. I hope that this is helpful and that you get it right.

Answer:

$240

Step-by-step explanation:

3 shirts cost $60

Take 3x4=12

Take $60x4= 240

There you have your answer.

You can also:

60÷3= 20

Each shirt cost $20

Take 12x20= 240

(That is how you will be able to solve the entire table if need be)

Hope this helps!

-AxekickNebulite

literal equation
Solve for W.

Answers

Hey it’s a thank me later :)

Determine the equation of the perpendicular bisector JK whose endpoints are J(-4,9) and K(6,1). Show all your work below. (Use of the grid is optional.)​

Answers

Answer:

[tex]y=\frac{5}{4}x+\frac{15}{4}[/tex]

Step-by-step explanation:

Coordinates of segment with endpoints J and K are,

J(-4, 9) and K(6, 1)

Midpoint of the segment JK = [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]

                                               = [tex](\frac{-4+6}{2},\frac{9+1}{2})[/tex]

                                               = (1, 5)

Slope of JK, [tex](m_1)=\frac{y_2-y_1}{x_2-x_1}[/tex]

                             = [tex]\frac{9-1}{-4-6}[/tex]

                             = [tex]-\frac{4}{5}[/tex]

Let the equation of perpendicular bisector passing through [tex](x_1,y_1)[/tex] and slope [tex]m_2[/tex] is,

[tex]y-y_1=m_2(x - x_1)[/tex]

By the property of perpendicular lines,

[tex]m_1\times m_2=-1[/tex]

[tex]-\frac{4}{5}\times m_2=-1[/tex]

[tex]m_2=\frac{5}{4}[/tex]

Therefore, equation of the line passing through midpoint (1, 5) and slope = [tex]\frac{5}{4}[/tex] will be,

[tex]y-5=\frac{5}{4}(x-1)[/tex]

[tex]y=\frac{5}{4}x-\frac{5}{4}+5[/tex]

[tex]y=\frac{5}{4}x+\frac{15}{4}[/tex]

what is the probability of rolling an odd number on a fair number cube with sides numbered 1 through 6

Answers

Answer:

The probability of rolling an odd number is 3/6 which is basically 1/2

Answer:

The probability of rolling an odd number is 1/2 or 1:2 or 3:6.

Step-by-step explanation:

There ar a total of 6 numbers and 3 odd numbers.

in 1900 in the United States there were 40 death from diphtheria for every 100,000 people. How many diphtheria deaths would be expected in 1900 in a town of 40,000?

Answers

Answer: Diphtheria once was a major cause of illness and death among children. The United States recorded 206,000 cases of diphtheria in 1921, resulting in 15,520 deaths. Diphtheria death rates range from about 20% for those under age five and over age 40, to 5-10% for those aged 5-40 years. Death rates were likely higher before the 20th century. Diphtheria was the third leading cause of death in children in England and Wales in the 1930s.

Since the introduction of effective immunization, starting in the 1920s, diphtheria rates have dropped dramatically in the United States and other countries that vaccinate widely. Between 2004 and 2008, no cases of diphtheria were recorded in the United States. However, the disease continues to play a role globally. "In 2007, (4,190 cases) of diphtheria were reported, which is likely an underestimate of the actual number of cases."

What is .41 times as many acres as 16.1

Answers

Answer:

10 acres, which is a more easily identified measurement than 435,600 square feet. To use the area conversion calculator simply select the unit that you want to convert from, which will be the amount that is known.

Step-by-step explanation:

100 + 100=300 u know why u add 100 to 200​

Answers

Answer:

pog champ

Step-by-step explanation:

Answer:

to make it 21

Step-by-step explanation:

Consider this scenario: A town's population has been decreasing at a constant rate. In 2010 the population was 5,900. By 2013 the population had dropped to 5,000.
Assume this trend continues.
Predict the population in 2016.

Answers

Answer:

i i honesly dont know im really sorry

Step-by-step explanation:

In april, mr. Anderson's students read 20 books in may, they read 14 books what is the percent increase or decrease in the number of books they read A.30% increase B.15%decrease C.30%decrease or D.20%decrease can I get the answer in 3secs cause that's all I have rn

Answers

Answer:

D 20%

try it its easy bro

1. Write the equation of the line parallel to y = x + 5 that passes through the point (6,-1).

Answers

Answer:

y=x -1

Step-by-step explanation:

parallel means the slope stays the same but the intercept changes accordingly

alsooo pls mark brainly ❤

I really need help with this ... I hope someone can help!

Answers

9514 1404 393

Answer:

  ∠B = 53°

  ∠C = 127°

  ∠D = 127°

Step-by-step explanation:

The trapezoid is isosceles, as indicated by the hash marks on sides AD and BC. This means it is symmetrical about the vertical center-line. Angles on the right will have the same measures as the symmetrical angles on the left.

So, you know immediately that ∠B = ∠A = 53°.

Because AB ║ DC, ∠A and ∠D are supplementary. That is, ...

  ∠D = ∠C = 180° -53°

  ∠D = ∠C = 127°

what is 10 times 10 hurry

Answers

Answer:

100

Step-by-step explanation:

Pls mark brainliest

Ten times Ten is 100

Step-by-step explanation:

Does this help?

pls pls pls help me

Answers

The correct answer is -30 3/4
Yeah their answer should be correct because your just changing a decimal at the end to a fraction of 3/4

Tom deposits $1000 into a savings account. That earns 5% simple interest. He has this account for 7 years. How much does it contain now?

Answers

Answer:

$1350

Step-by-step explanation:

5% of 1000 is 50

50x7 is 350

1000+350=1350

What is 9 devided by 4,590

Answers

Answer:

1/510

Step-by-step explanation:

Answer:

9 divided by 4,590= 0.00196078431

Step-by-step explanation:

its best to use the calculator after solving any equation.

Solve the formula
h = 54t + at for a

Answers

Answer:

a = [tex]\frac{h - 54t}{t}[/tex]

I hope this helps!

a= h-54t/t is the answer

In the expression 3xy+5y−xy+2x−7, what are the two variables?

Answers

Answer:

x and y are the two variables, although I think it should be x, y and xy

Step-by-step explanation:

What is the zeroth term? 5, 15, 45, 135, ...

Answers

Answer:

i took quiz and it was 45

Step-by-step explanation: also can you mark brainliest

-3x + b = 6x, solve for x

Answers

Answer:

Your answer is: [tex]x=\frac{b}{9}[/tex]

or if you are solving for b:  [tex]b=9x[/tex]

Isolate the variable by dividing each side by factors that don't contain the variable.

Step-by-step explanation:

Hope this helped : )

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