7.60. When Paul crossed the finish line of a 60-meter race, he was ahead of Robert by 10 meters and ahead of Sam by 20 meters. Suppose Robert and Sam continue to race to the finish line without changing their rates of speed. By how many meters will Robert beat Sam?
Hint: By how many meters would Robert beat Sam if the race were 50 meters? 100 meters? 150 meters?

Answers

Answer 1

Answer:

The number of meters Robert will beat Sam is 12 meters.

Step-by-step explanation:

Given:

When Paul crossed the finish line of a 60-meter race, he was ahead of Robert by 10 meters and ahead of Sam by 20 meters. Suppose Robert and Sam continue to race to the finish line without changing their rates of speed.

Find:

the number of meters by which Robert will beat Sam

Step 1 of 1

When Paul finishes, Robert has run 60-10=50 meters and Sam has run 60-20=40 meters.

Therefore, when Robert and Sam run for the same amount of time, Sam covers [tex]$\frac{40}{50}=\frac{4}{5}$[/tex] of the distance that Robert covers. So, while Robert runs the final 10 meters of the race, Sam runs [tex]$\frac{4}{5} \cdot 10=8$[/tex] meters.

This means Robert's lead over Sam increases by 2 more meters, and he beats Sam by 10+2=12 meters.

Answer 2
12 meter is correct ans in comments

Related Questions

I DO REALLY NEED HELP: An architect is planning a city parking lot. For every 12 commuters, the parking lot will need 5 parking spaces. How many parking spaces will be needed by 132 commuters?

Answers

It should be 46. Good luck

Answer:

55 parking spaces

Step-by-step explanation:

Using unitary method:

For every 12 commuters , 5 spaces are needed.

∴ For 1 commuter:

5 ÷ 12 ⇒  [tex]\frac{5}{12}[/tex]  spaces are needed.

∴ For 132 commuters ⇒ [tex]\frac{5}{12}[/tex]  × 132 = 55 spaces.

PLEASE ANYONE: Roger worked 9 hours on Friday and 6 hours on Saturday.What is the ratio of the work done on Friday to the total hours worked on both days?

Answers

friday is 9 hours
both days is 9 hours + 6 hours = 15 hours

ratio would be friday:both days

9:15

simplify it by dividing both sides by 3

The ratio of work done on Friday to the total hours worked on both days is 3:5
The ratio is 9 to 15


Circle the correct option: A, B, C, or D.

3. Which of the following is 15.5 kg when rounded to 1 decimal place?

A 15.05 kg
B 15.45 kg
C 15.55 kg
D 15.15 kg

Answers

Answer:

Option A

Step-by-step explanation:

To round to ONE decimal place means one significant number should be after the decimal point (.)Option A is the correct answer because if I a zero leads after the decimal point then it isn't significant.The zero in option A is insignificant but other numbers are and it says to ONE decimal place so option A is the correct answer.Hope this helps.

Good luck ✅.

option A is correct.

0.9(3/2.25-1/8(5/3+1/9))-4/7 / (8/10)

Answers

Lmk if you have any questions :) Using PEMDAS
here is the answer i did by hand.

8.3.5 Ana's monthly salary was $2000 in May. In June, she received a 20% raise. In July, she received a 20% pay cut. After the two changes in June and July, what was Ana's monthly salary?

Answers

Answer:

After July, Ana's monthly salary was $1920

Step-by-step explanation:

In May, Ana's monthly salary was $2000. During the next month, the salary increased by 20%, or (0.2)(2000)

[tex]2000+(0.2)(2000)=2000+400=2400[/tex]

So, in June, Ana's monthly salary was $2400. During the next month, the salary decreased by 20%, or (0.2)(2000)

[tex]2400-(0.2)(2400)=2400-480=1920[/tex]

Therefore, after the two changes, Ana's monthly salary was $1920

Answer:

Now Ana's monthly salary is 1920$.

Step-by-step explanation:

Given: Ana's salary in may =2000$

in June she received 20% raise

in July she received 20% pay cut.

To find Ana's monthly salary after the two changes in June and July.

we have to first find Ana's salary at the end of June month with 20% raise. and then her salary after the end of July month with the pay cut of 20%.

Step 1 of 2

Ana's salary after June month when she got 20% raise in his salary after May is equal to

[tex]=2000+(20 \% \cdot 2000)$\\ $=2000+\left(\frac{20}{100} \cdot 2000\right)$\\ $=2400 \$$[/tex]

her new salary after May will be 2400$.

Step 2 of 2

now she got a pay cut of 20% on his new salary from July month

so, her salary after that would be equal to

[tex]=2400-(20 \% \cdot 2400)$\\ $=2400-\left(\frac{20}{100} \cdot 2400\right)$\\ $=2400-480$\\ $=1920 \$$[/tex]

8.36 Polly the Penguin invested $250 in the Antarctic stock market. During the first year her investment suffered a 15% loss, but during the second year the remaining investment showed a 20% gain. Over the two-year period, what was the percent loss or gain in Polly's investment?

Answers

Answer:

The percentage gain in Polly's investment over the two year period will be 2%.

Step-by-step explanation:

Given:

- Polly the Penguin invested $250 in the Antarctic stock market.

- During the first year her investment suffered a 15% loss, but during the second year the remaining investment showed a 20% gain. Over the two-year period.

To Find:

- The percent loss or gain in Polly's investment.

The formula used to calculate percentage is: (value/totalvalue) x100%

- First, we determine the loss suffered by multiplying the loss percentage with the investment amount. Then, we get the amount after the loss is calculated. Then, we calculate the gain by multiplying the gain percentage with the previous amount to get the net amount in the second year.

Step 1 of 2

- The 15% loss in the first year on the investment amount $250 can be calculated as

[tex]$$\begin{aligned}&=250-15 \% \text { of } 250 \\&=250-\frac{15}{100} \times 250 \\&=250-\frac{3}{20} \times 250 \\&=250-\frac{750}{20} \\&=250-37.5 \\&=\$ 212.50\end{aligned}$$[/tex]

Step 2 of 2

- The 20% gain in the second year can be calculated as

[tex]$$\begin{aligned}&=212.50+20 \% \text { of } 212.50 \\&=212.50+\frac{20}{100} \times 212.50 \\&=212.50+42.50 \\&=\$ 255\end{aligned}$$[/tex]

- Here, we can observe that the total profits increased by $5 from the initial investment of $250. This means that 1% gain is equal to $2.50. So, 2% gains mean $5.

Answer:

5% gain

Step-by-step explanation: mental math

HELP: Of 580 students in a high school graduating class 45% are planning to go to college. How many of the graduates are planning to go to college?

Answers

Answer:

261 of the graduates are planning to go to college.

Step-by-step explanation:

This is a proportion question.

x         45

___ = ___

580    100

First do 45 x 580 = 26,100

Then divide by 100 to get 261.

261 are planning to go to college

8.33 Suppose Paul receives a 6% raise every year. After four such raises, what is the total percentage increase to the nearest whole percent?

Answers

Answer:

Given:

Suppose Paul receives a 6% raise every year.

To find:

After four such raises, the total percentage increase to the nearest whole percent.

The formula used to calculate percentage is: (value/total value)*100%.

Step-by-step explanation:

Step 1 of 1

Assume his salary is originally  100 dollars.

Then, in the next year, he would have 106 dollars, and in the next, he would have 112.36 dollars.

The next year he would have 119.1016 dollars and in the final year, he would have 126.247.

As the total increase is,

((126.247 -100)/100) *100

= 26.247%

the answer is 26%.

6% yaaaaaaaaaaaa hidiwgeudheguquevdhd

Graph the inequality on a number line. (Section 4.1) 10. x > 5

Answers

Answer:

Please see the attached image.

Step-by-step explanation:

If x > 5, it means that the value of x can take on any value that is greater than 5. Therefore, if you draw a number line, you can put a circle on the number 5 and draw an arrow pointing to the right (in the positive direction, representing all the numbers greater than 5). It is important to note that the circle you draw on the number 5 should not be shaded. This is because, according to the problem, while x can be greater than 5, it cannot equal 5. A hollow circle signifies that the value cannot equal the number circled exactly. I hope this answers your question.

Answer just might be 25

please help!

-1 1/3 ÷ 2 2/5=

Answers

The answer to this equation is -1/15

Answer:

[tex]-\frac{5}{9}[/tex]  

Please Help!
In the figure below, angle y and angle x form vertical angles. Angle x forms a straight line with the 50° angle and the 40° angle.


Write and solve an equation to determine the measure of angle y.

Answers

Answer:

90°

Step-by-step explanation:

In the picture, if you make a shape of the angles (including x°, y°, and the undefined angle), it is a circle, therefore it is 360° because a circle is 360°.

First, you add 50° + 40°, which gives you 90°. The undefined angle, which is 50° + 40° vertical angle is also 90° Therefore x° and y° must equal 90°.

The answer is 90° Because of the angle

Find the value of a,b and c from the following figures .​

Answers

Answer:

a=c=30⁰, b=150⁰.

Step-by-step explanation:

angle R is 120⁰ (vertically opposite angle)

so, for vertically opposite angle c we have,

30⁰+120⁰+c=180⁰

Hence, c=30⁰.

angle a = angle c = 30⁰ (corresponding angle).

180⁰-c = b (from figure being straight line)

or, b=180⁰-30⁰

hence, b=150⁰

I first found variables to let the amount
invested be at. Then have the variables I
choose represent y and z. The amount
invested at 2% = $600. The amount
invested at 3% = $1,100. The amount
invested at 4% = $2,200. Total amount
invests at 2%
$600


19. A fabric dye was sold at $5.75 per 100 ml. Steven bought 4 L of this dye. How much did he pay?

Answers

Answer:

Step-by-step explanation:

(4l = 4000ml)

100ml = $5.75

4000ml = x

cross multiply

100x = (5.75 ×4000)

100x/100 = 23000/100

x = $230

answer: he payed $230.00

covert the 4 L into mL: 4,000 mL
divide 4,000 mL by 100 mL: 40 mL
multiply 40 mL by $5.75: $230.00

HELPPPP!!!!!!!!!!!!!!!! pls hurry , need correct answers 3

Answers

Answer:

"A value that is substituted in for the variable in a function in order to generate an output value" is gonna be known as an input.

"A group of two numbers written in the form (x, y) where the x value represents a horizontal position and the y value represents a vertical position" is known as an ordered pair.

"A value generated by a function when an input value is substituted into the function and evaluated" is known as an output.

I hope I have helped with this problem. Have a good day.

1,3,5 should all be correct (:

write the letter of the correct choice in the blank

I got stuck, I need your help and please answer all 4 ques.
thank u

Answers

Question 1:

A and B provide very little information therefore I would chose C or D. If you look at D it has “Tea Spoons” were that would be right if the question was different. You see your question says “All the Units” UNITS so D cant be correct. This means the answer ost probably should be C.



Question 2:

Same as the last one this has units so I would go for C because it is te most accurate way of time periods.


Question 3:

This could get you off guard because it says “could NOT be used to convert” in short that is referring to the false answer and it seems like the answer here would be D.


Question 4:

Now this question asks that which relation is going to be first. So if you want to make it easier which they are asking you to do I would go for C.




Hope this helps :)
Hmmm not really sure about this one

Simplify:
-x + 17 + (-12) + x

Answers

Answer is 5, the -x and +x cancel eachother out.

Answer: 5

Step-by-step explanation:

Negative x and positive x combined together cancel each other out

*NEED HELP*


Graph the line that represents a proportional relationship between d and t with the property that increase of 5 units in t corresponds to an increase of 8 units in d. what is the unit rate of change of d with respect to t? (That is, a change of 1 units t will correspond to a change of how many units in d

Answers

The answer is 8/5 hope it’s right
The answer i got for this is 8/5

HELP?: Concert tickets prices decreased from $125.00 to $75.00. What is the percent of decrease.

Answers

Answer:

40%

Step-by-step explanation:

percent change = (new number - old number)/(old number) × 100%

percent change = (75 - 125)/(125) × 100%

percent change = -40%

A negative percent change is a decrease.

Answer: 40%

40%
the answer is 40% bcuz that’s the percent of decrease 125 to 75


16. A farmer had 385.60 lb of tomatoes. She sold half of them at $1.15 per pound. How much money did she receive?

Answers

she received $221.72. If you divide 385.60 in half, because she sold half, you get 192.8. You then multiply that number by 1.15. There you have your answer.

Answer:

Step-by-step explanation:

385.60 / 2 = 192.8

since 1lb = 1 pound

192.8 × 1.15 = $221.72

Find the area of the shaded region.

Answers

Answer:

[tex]18 ft^2[/tex]

Step-by-step explanation:

You could calculate the area of the trapezoid and then subtract the area of the triangle.

Area of a trapezoid:

 [tex]A = \frac{a+b}{2}h[/tex]

Plug values in:

[tex]A = \frac{6+12}{2}(6)[/tex]

Add 6 and 12:

[tex]A = \frac{18}{2}(6)[/tex]

Simplify:

[tex]A = 54[/tex]

Area of a triangle:

[tex]A = \frac{1}{2}bh[/tex]

Plug values in:

[tex]A = \frac{1}{2}(6)(12)[/tex]

Simplify:

A = 36

Subtract the area of the triangle from the area of the trapezoid

54 - 36 = 18

You could also calculate the area of the shaded region by assuming that they're congruent meaning the base would be half of 6 which is 3 and the height would be 6 so the area of one would be 1/2 (6)(3) but since they're is 2 you wouldn't need the 1/2 since multiplying by 2 would cancel it out so the area would be (6)(3) = 18

18 foot squared is the answer

50 POINTS!
A used car dealer has the following information for 2 months of sales:
Month 1: 239 cars sold

Month 2: 324 cars sold

Do we have an increase or a decrease in sales and what percentage?

*ANSWER IS NOT 135% INCREASE*

Answers

The answer is going to be 845
The answer is 845, hope this helps have a nice day! ;)

There are 26 students in William's math class. The mean height of the students is 160 cm, and the median height is 156 cm. The interquartile range of the heights is 18 cm, and the mean absolute deviation of the heights is 4.6 cm.

Part A: Suppose the students in William's math class are listed in order from shortest to tallest. What is the difference between the height of the seventh student in the list and the height of the twentieth student in the list?

Part B: Suppose a new student joins William's math class, and his height is 160 cm. What is the mean height of students in the class with the additional student?

Please answer both parts for 50 points. :))

Answers

Answer:

To answer this question you will use the median height of 156 centimeters and the fact that there are 26 kids in the class to know that the median is not in the data set, therefore it breaks the data into two equal halves with 13 in each half.There would be 13 less or equal to the median height.

Step-by-step explanation:

Answer:

There would be 13 less or equal to the median height.

A box measures 1/6 ft. long, 1/4 ft. wide, and 1/3 ft. high. Find the volume of the box in inches. Do not include units in your answer write as a whole number

Answers

Answer:

24

Step-by-step explanation:

We know that the final answer has to be in inches.

To convert ft = in, multiply given ft. by 12.

1/6 = 1/6 * 12 = 2

1/4 = 0.25 * 12 = 3

1/3 = 0.3 * 12 = 4

2*3*4 = 23 cubic in.

24

Step-by-step explanation:

HELPPP:
A motorist planned a teipcovering 920 miles. After he had traveled 598 miles, wha5 percent of the mileage planned had he covered?

Answers

Answer:

The answer is 65 percent

Step-by-step explanation:

Answer:

65%

Step-by-step explanation:

This is a proportion question.

598      x

___ = ___

920    100

First, do 598 x 100 and get 59,800.

Then do 59,800/920 and get 65%.

Can someone help on Question C?

Answers

It's - b + a

Because we're going down the arrow on b or the opposite direction of b. Then, up to C where its vector is a as it lies half way on AC with half of the line labelled a. So, the other half must be also a.

Hope this helps!

It’s b and a, hope this helps have a nice day! ;)

1 ACTIVITY: Estimating a Part
Work with a partner. Use a model to estimate the answer to each question.
c. What number is 40% of 30?

Answers

Answer: 12

Step-by-step explanation:

Converting the problem into words, we have

x= 4/10*30

x=12

What is 40% of 30?
Answer: 12

A peanut vendor sells roasted peanuts in three sized bags: 2 pounds for $3 and $5, pounds for $7.50, or 8 pounds for $12. Which is the best buy?

Answers

Answer:

a. 2p=3

b. 5p=7.5

c. 8p=12

a. p=1.5

b. p=1.5

c. p=1.5

their all the same

Hope This Helps!!!

They are all the same

(Edge.)
Which number line shows the graph of Negative 2.75 less-than x?

A. A number line going from negative 3 to positive 3. An open circle is at negative 2.75. Everything to the left of the circle is shaded.

B. A number line going from negative 3 to positive 3. An open circle is at negative 2.75. Everything to the right of the circle is shaded.

C. A number line going from negative 3 to positive 3. A closed circle is at negative 2.75. Everything to the left of the circle is shaded.

D. A number line going from negative 3 to positive 3. A closed circle is at negative 2.75. Everything to the right of the circle is shaded.

Answers

your answer would be b
did it on edge

Answer:

D

Step-by-step explanation:

24. SPANISH TEST The double box-and-whisker plot shows the test scores of two Spanish classes taught by the same teacher.
a. Compare the populations using measures of center and variation.

Answers

u need pics big man :)
Upload a picture of the problem for us


13. Find the equivalent measure.

6.4 km = ________km ________m

Answers

[tex]\frak{Hi!}[/tex]

[tex]\orange\hspace{300pt}\above1.8[/tex]

                   To turn kilometers, km, into meters, m, multiply the number

                    of km by 1,000.  This comes out as.

                   [tex]\boldsymbol{\sf{6.4\times1,000=6,400\:Metres}}[/tex]

                   To convert meters, m, into kilometers, km, divide the number

                   of m by 1,000. This comes out as

                   [tex]\boldsymbol{\sf{6,400\div1,000=6.4\:Kilometres}}[/tex]

#learnwithbrainly

[tex]\orange\hspace{300pt}\above2[/tex]

Convert 6.4 Kilometers to Meters (km to m) with our conversion calculator and conversion tables. To convert 6.4 km to m use direct conversion formula below.
6.4 km = 6400 m.
You also can convert 6.4 Kilometers to other Length (popular) units.

Other Questions
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