If a person ran 32 kilometers at a rate of 8 kilometers/hr, how long did he run?

Answers

Answer 1

Answer:

u use speed triangle so 32/8=4

so he travelled 4 hours

MARK AS BRAINLIEST

MARK AS BRAINLIEST

Answer 2

Answer:

4 hours

Step-by-step explanation:

1hr=8 kilometers

2=16 kilometers

3=24 kilometers

4=32 kilometers


Related Questions

A researcher wishes to​ estimate, with ​% ​confidence, the population proportion of adults who eat fast food four to six times per week. Her estimate must be accurate within ​% of the population proportion.

Answers

Answer:

The minimum sample size required is 1068.

Step-by-step explanation:

The complete question is:

A researcher wishes to​ estimate, with 95​%  confidence, the population proportion of adults who eat fast food four to six times per week. Her estimate must be accurate within 3​%  of the population proportion.

​No preliminary estimate is available. Find the minimum sample size needed.

Solution:

The (1 - α)% confidence interval for the population proportion is:

[tex]CI=\hat p\pm z_{\alpha/2}\cdot\sqrt{\frac{\hat p(1-\hat p)}{n}}[/tex]

The margin of error for this interval is:

[tex]MOE= z_{\alpha/2}\cdot\sqrt{\frac{\hat p(1-\hat p)}{n}}[/tex]

The information provided is:

[tex]MOE=0.03\\\text{Confidence level}=95\%[/tex]

Assume that the sample proportion is 50%.

The critical value of z is, 1.96.

Compute the minimum sample size required as follows:

[tex]MOE= z_{\alpha/2}\cdot\sqrt{\frac{\hat p(1-\hat p)}{n}}[/tex]

      [tex]n=[\frac{z_{\alpha/2}\cdot \sqrt{\hat p(1-\hat p)}}{MOE}]^{2}[/tex]

         [tex]=[\frac{1.96\times\sqrt{0.50(1-0.50)}}{0.03}]^{2}\\\\=1067.1111\\\\\approx 1068[/tex]

Thus, the minimum sample size required is 1068.

does this graph show a function? explain how you know

Answers

the answer is A i believe. there is a function but there are never y values with more than one x value.

Answer:

B

Step-by-step explanation:

if you drew a line on top of any part of the parabola, you will only touch the line once.

(when drawing a line, they are always vertical, not horizontal)

CONVERT 1.3333........ into p/q form​

Answers

Answer:

4/3In short form, it is x is equal tox= 12/9

NEED THIS ANSWER BY THE END OF THE DAY PLEASE HELP !!
The sum of two numbers is 45. The smaller number is 17 less than the larger number. What are the numbers ?

Answers

Answer:

small number is 14

Larger number is 31

Step-by-step explanation:

Let x = one number

Let y = the second number

x + y = 45

x = y - 17

Put y - 17 into the top equation for x

y - 17 + y = 45

2y - 17 = 45          Add 17 to both sides

2y = 45 + 17

2y = 62                Divide by 2

y = 62/2

y = 31

NEED ANSWER ASAP THE TEST IS TIMED!!!!!!!
Find the slope of the line that contains the two points (6, -2) and (-3, 1).

Answers

Answer:

5/-1

Step-by-step explanation:

y1-y2/x1-x2

Ok so basically. In this problem you will first identify the x and y axis for the two points. Then do the following eqation: y2-y1/x2-x1. So in this situation: -2+1/6-3. This equation equals -1/3. So your slope will be -1/3

PLEASE HELP ME MATH PROBLEM UGH

Answers

Answer:

the 2nd, 5th and 7th are the correct ones.

oswald and paula share sweets in the ratio 7:4 if oswald recievies 49 sweets how many less does paula get​

Answers

Answer:

21 less

Step-by-step explanation:

49:? = 7:4

49 / 7 = 7

7 x 4 = 28

49- 28 = 21

Preston is making cookies. He has 4 over 5 cup of flour in a bag. He then used two 1 over 10 cups of flour for his recipe. Which of the following best explains the amount of flour left in the bag?
6/10 , because 4/5-2x(1/10)=4/5-3/10
5/10 , because 4/5-2x(1/10)=4/5-3/10
6/10 , because 4/5-2x(1/10)=4/5-2/10
5/10 , because 4/5-2x(1/10)=4/5-2/10

Answers

Answer:

6/10, because 4/5-2x(1/10)=4/5-2/10

Step-by-step explanation:

Think I fell asleep during this lesson... whoops ¯\_(ツ)_/¯

**Wrong answers will be reported

Answers

Answer:

I believe it's 65 degrees.. I'm sry if wrong I may have fell asleep too

Step-by-step explanation:

What is the boiling point of salty ocean water?

Answers

Answer: approximately 105.7°C

Step-by-step explanation:

Seawater of 35 psu has a specific heat of 0.932 compared with 1.000 for pure water. Pure water freezes at 0 °C and boils at 100 °C (212 °F) under normal pressure conditions. When salt is added, the freezing point is lowered and the boiling point is raised. Therefore, we can tell that salt increases the boiling temperature, but not by very much. If you add 3 grams of salt to 100 grams (or mL) of water, instead of boiling at 100° C, it'll boil at 100.5° C.

And I'm not sure about the ocean water because the expected range is too wide and various, so maybe I guess the boiling point of salty ocean water would be about 105.7°C?

PLEASE HELP 15 POINTS...PLEASE HELP

Answers

Answer:

Slope: -1/4, y-intercept: -2.

Step-by-step explanation:

The line intersects the y-axis at -2. This means that the y-intercept is -2. The slope is -1/4 because since the slope is rise over run, you go up one and then to the left 4 from the y-intercept. When you do this you see that from both A to B, you will end up on the same line.

Hope this helps!

Answer:

C

Step-by-step explanation:

slope = -1/4

y-intercept = -2

How many eight notes is equal to a halfnote ​

Answers

Answer: Four eighth notes

Sixteenth Notes

Step-by-step explanation: Two quarter notes equal one half note in duration and four quarter notes equal one whole note. Two eighth notes equal one quater note in duration. Four eighth notes equal one half note in duration and eight eighth notes equal one whole note.

Answer:

Four eighth notes

Four eighth notes equal one half note in duration and eight eighth notes equal one whole note. Two sixteenth notes equal one eighth note in duration and four sixteenth notes equal one quarter note in duration, etc.

Write the rational number 2 7/8 in the form ab where a and b are integers
Plsss HELP ME

Answers

Ask gooooooooooooogle

PLEASE HELP ME!!! Point Q is located at (-4, 6) Point R is located at (8, 6)
what is the distance from point Q to point R?

Answers

Q = (-4, 6)
R = (8, 6)

You can work out the distance between the points by doing the following formula:


√(x₂ - x₁)² + (y₂ - y₁)²

Factor in our points:

√(8 - -4)² + (6 - 6)²

Solve the brackets (remember a negative and a negative make a positive):

√(12)² + (0)²

= √144 + 0

= √144

Solve this expression to get your final answer of the distance between two points:

√144 = 12

I hope this helps. If it does then a Thanks or a Brainliest would mean a lot! :)

4 monkeys is _______% of 20 monkeys.
1 point
5
4
20
50
_______% of 50 robots is 35 robots.
1 point
50%
35%
70%
10%

Answers

4 monkeys is 20% of 20 monkeys.

70% of 50 robots is 35 robots.

Answer:

hm

Step-by-step explanation:

Maria donates a fixed amount, a, to a charity each month. If she donates $300 in 12 months, what is the equation for a? A. a + 300 = 12 B. a × 300 = 12 C. a × 12 = 300 D. a + 12 = 300 E. a + 32 = 100

Answers

Answer:

a times 12=300

Step-by-step explanation:

donated each month a should be 25. $25 times 12 equals 300

Answer:

C.  

a × 12 = 300

Step-by-step explanation:

Joe wants to buy a pair of pants that cost $48. He has a coupon and after the coupon is applied, his jeans cost $40.80. What percent off was his coupon?

need answer asap​

Answers

Answer:

85%

Step-by-step explanation:

I learned about it and did the problem so to check my answer i searched it up on Google

Step-by-step explanation:

Percent Change Formula

(New value- Original Value)/ original value multiplied by 100.

So (40.8-48)/48

This gives us a decimal of -.15.

Multiply by 100

And we get 15 percent off

A translation maps (x, y) to
(x – 5, y + 3). In which
quadrant does the point
(-3,-2) lie under the same
translation?

Answers

Answer:

second quadrant

Step-by-step explanation:

(x, y ) → (x - 5, y + 3 ) means subtract 3 from the original x- coordinate and add 3 to the original y- coordinate.

(- 3, - 2 ) ← in third quadrant

→ (- 3 - 5, - 2 + 3) → (- 8, 1 ) ← in second quadrant

the balance in Ana's savings account may be modeled by the linear function y =50x + 2500, where x represents the number of months the have passed and y represents the account balance. Based on this function which of these is the best prediction of Ana's total savings after 3 years?
A. $2,650
B. $3,700
C. $4,300
D. $7,650​

Answers

Answer:

C. $4,300

Step-by-step explanation:

3 years = 36 months so,

50(36) + 2500 = $4300

What is the value of z?

Answers

Answer:

z = 86

Explanation:

90 - 68 = 12
180 - 78 = 102
102 + 12 = 114
180 - 114 = 86


z=56°
explanation: since the one angle is 90°, you need to take 68 away from 90, you get 22. then since the line between angle 78° and y, would add up to 120°, you must take 78° away from 120°, giving you 42 for angle y. now for 3-sided triangles, their 3 angles add up to 120°, so add 42 and 22, you get 64, and finally take 64 away from 120 and you get angle z, which is 56°

The value of $\sqrt{73}$ is between two positive, consecutive integers. What is the product of these two integers?

Answers

Answer:

Step-by-step explanation:

What are the two closest square numbers to 73?

64 and 81

[tex]\sqrt{64} \leq \sqrt{73} \leq \sqrt{81}\\8\leq \sqrt{73} \leq 9\\8*9 = 72[/tex]

Answer:

72

Step-by-step explanation:

Since $73$ is between $64=8^{2}$ and $81=9^{2}$, we know that $\sqrt{73}$ is between $8$ and $9.$ Our answer is $8\cdot9=\boxed{72}.$

A penguin walks 10 feet in 6 seconds. At this speed: How far does the penguin walk in 1 second?​

Answers

Answer: 1.67 feet in 1 second

Step-by-step explanation: To find out how far the penguin walked in 1 second, you’ll have to divide 10 by 6 or use the ratio 10 : 6 and divide. You should get a final answer or result of 1.67 feet in 1 second.

*Tip: If you want to make sure your answer is correct, simply multiply your answer times 6, and see if it equals to 10 or is near 10.

Answer:

5/3 ft

Step-by-step explanation:

10 ft = 6s

x ft = 1s

cross multiply

10ft × 1s = 6s × x

{divide both sides by The coefficient of x (6x) }

(10 ft × s) ÷ 6s= x

10 ft ÷ 6 = x

5/3 ft = x

x = 5/3 ft

Item 6 Graph △JKL and its image after a reflection in the y-axis. J(5, 3), K(1,−2), L(−3, 4)

Answers

Answer:

J(-5,3) K(-1,-2) L(3,4)

Step-by-step explanation:

Reflections over the y axis make the x its opposite. 5 would change to -5, 1 would change to -1, and -3 would change to 3.

When a shape is reflected, it must be reflected across a line.

See attachment for the graph of the image of JKL

The coordinates are given as:

[tex]\mathbf{J = (5,3)}[/tex]

[tex]\mathbf{K = (1,-2)}[/tex]

[tex]\mathbf{L = (-3,4)}[/tex]

The rule of reflection across the y-axis is:

[tex]\mathbf{(x,y) \to (-x,y)}[/tex]

So, the image of the reflection is:

[tex]\mathbf{J'= (-5,3)}[/tex]

[tex]\mathbf{K'= (-1,-2)}[/tex]

[tex]\mathbf{L'= (3,4)}[/tex]

See attachment for the graph of the image of jKL

Read more about reflections at:

https://brainly.com/question/15487308

Solve each inequality below.
7. -4x < 32

Answers

All you do it divide each side by -4
-4x<32
— —
-4 -4
x<-8
Since there is a negative you have to switch the signs and so your answer is x>-8
Hope this helped!

16x² +8-7x-3x2 - 13x

Answers

Answer:

[tex]13x^{2}[/tex]-20x+8

Step-by-step explanation:

Step 1: rearrange the equation

16x^2 - 3x^2 - 7x - 13x +8

Step 2: solve the equation

16x^2 - 3x^2 = 13x^2

-7x - 13x = -20x

(the +8 will stay the same)

so when we put it all together it gives us

13x^2 - 20x + 8

It takes 1 minute for a certain amount of potassium bromide (KBr) to dissolve in 100 grams of water at 25 °C.

Which of the following will most likely happen if the same sample of potassium bromide is dissolved in 100 grams of water at 100 °C?

The sample will dissolve in exactly 1 minute.
The sample will dissolve in less than 1 minute.
The collision between particles of the sample will decrease.
The collision between particles of the sample will remain constant.

Answers

Answer:

The sample will dissolve in less than one minute

Step-by-step explanation:

If I pay $600 in interest for my simple interest loan for $10,000 at an
interest rate of 3%, how long did I have the loan for?

Answers

Answer:

2 periods

Step-by-step explanation:

Simple interest is compounded one time, usually annually, although it could be less time or longer. Thus I answer 2 periods. If your choices include 2 years, that is most likely the answer.

To find the answer,

$10,000 x .03 = $300.

$600 / $300 = 2 periods.

Hope this helps.

Good luck

what is the reciprocal of 9 5/6

Answers

9 6/5 is the reciprocal

jessica will babysit children for $8 an hour. ciara will babysit for an appointment fee of $12 and $4 an hour. how many hours would they need to work to earn the same amount of money? if a baby sitter was needed for 5 hours, who would be less expensive?

Answers

Answer:

Answer are in bold below

Step-by-step explanation:

Question: 1

Jessica = $8

Ciara = $12 + 4 $16

Now we times both values.

16 x 8 = $128

8 x 16 = $128

They would both need to work 8 hours ft=or the same money.

Question 2:

$8 x 5 = $40

$16 x 5 =$80

Jessica will be less expensive.

Answer: 3 hours

Jessica=$8

Ciara= $4 + $12

8*3= $24

4*3= $12 +$12= $24

Because Ciara has an additional $12 fee, you have you add it on to her total.

Hi, PLEASE DO NOT REPORT. THIS IS FOR MY LEADERSHIP CLASS IT'S VOLUNTEER FRIDAY. PLEASE BE APPROPRIATE
Ok so, Hi again this is for the people who are stressed, overwhelmed, and or are under a lot of pressure. comment/answer down below what your stressed, overwhelmed, and or are under a lot of pressure and just talk about it really helps to talk about your problems. You'd feel better about almost like you have some weight lifted off your shoulders.

Answers

Answer:

I am stressed about the extreme amount of homework that each of my teachers give me. It is like they don't take into account our mental health. To add on to stress my parents are constantly on me about my grades and my future. I cry at least every night about my homework.

Step-by-step explanation:

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