7. Mahmoud runs to a marker and back in 15 minutes. His speed on
the way to the marker is 5 m/s and his speed on the way back is
4 m/s. Find the distance to the marker.​

Answers

Answer 1

Answer:

2000 meters

Step-by-step explanation:

From the above question

Total time = 15 minutes

Converting minutes to seconds

1 minute = 60 sec

15 minutes = x

Cross Multiply

x = 60 × 15 = 900 seconds

Hence, 900 seconds = Total time

Total time = Time to the marker + Time from the marker

From the question, we are given the Speed to the marker = 5 m/s

Speed from the marker = 4 m/s

Time = Distance/speed

Let the distance be represented by x

Hence:

x/4 + x/5 =900

Multiply all through equation by Lowest Common Denominator = 20

5x + 4x= 900×20

9x = 900 ×20

Divide both sides by 9

9x/9 = 900 × 20/9

x = 2000 meters

Therefore, the total distance to the marker = 2000 meters


Related Questions

help plssss (I’ll give 80 pointsss)

Answers

Answer:

5 + 2 = 7

Step-by-step explanation:

The vertical lines are on the points 5 and 7. So to get from five to seven you move two to the right

Answer:

here in the figure

5 +2 = 7

so the vertical lines is in the points 5 and 7 .

if you want to find

you need to add both points 5 and 2

so after adding both you will get answer 7

hope it is helpful to you️☺️☺️☺️☺️☺️☺️☺️

A farmer plants the same amount every day, adding up to 134 acres at the end of the year. If the year is 12 over, how many acres has the farmer planted?

Answers

fAnswer:

1608 acres

Step-by-step explanation:

total acres planted in 12 years = acres planted per year x number of years

134 x 12 = 1608

Answer:

5/6

Step-by-step explanation:

1 2/3 x 1/2 = 5/6

need help thank u
:)

Answers

The area of the base is 1/2 x s x s = 1/2 x 12 x 12 = 72 square cm

Volume = area of base x height/3

Volume = 72 x 14/3 = 336 cm^3

Which statement is correct

Answers

The answer is choice C. I mean if you just look at the number lines. Whichever one is closer to the right is greater

please please help me im begging you T_T

Answers

S= 25
To find the rest you just do 180-25

Answer:

s = 25

r = 155

t = 155

Step-by-step explanation:

r + 25 = 180

t + 25 = 180

s + t = 180

Claire bought 6 packs of baseball cards. Each pack had the same number of cards. If Claire bought 48 baseball cards in all, how many cards were in each pack.

Answers

Answer:

8 baseball cards were in each pack

Step-by-step explanation:

Since she has a total of 48 cards and each of the 6 packs had the same amount you would just do 48 divided by 6 which is 8. So there were 8 baseball cards in each pack

the table shows the costs of different size jars of peanut butter. Which of the jars have the lowest unit rate?

Answers

Answer:

Step-by-step explanation:

Option C) 25-oz jar has the lowest unit rate

What is the unit rate?

Unit rate is the ratio of two different units, with the denominator as 1. For example, kilometer/hour, meter/sec, miles/hour, salary/month, etc

Given here the cost of a 12 oz jar is $3

so the unit rate of a 12 oz jar is = 12/3

                                                 = 4

similarly, the unit rates of all the jars from the given table are

 18 oz jar = 18/4.40

                = $4.09

25 oz-jar = 25/6.75

               = $3.703

32 oz jar = 32/8.25

               = $3.87

Hence the jar with the lowest unit rate is the 25 oz jar

Learn more about the unit rate here:

https://brainly.com/question/29781084

#SPJ2

find the area of a semi circle when the radius is 10cm.
give the answer in term of pi

Answers

Answer:

A = 50π cm²

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Geometry

Area of a Circle: A = πr²

r is radius

Step-by-step explanation:

*Note: A semicircle is half a full circle.

Step 1: Define

Radius r = 10 cm

Step 2: Solve for A

Rewrite Area of Circle Formula:                                                                      A = 0.5πr²Substitute in r [Area of Semicircle Formula]:                                                  A = 0.5π(10 cm)²[Area] Evaluate exponents:                                                                              A = 0.5π(100 cm²)[Area] Multiply:                                                                                                  A = 50π cm²
3.14195 is pi sooooo yea that’s pi

(HURRY) A tank is filled with 100 gallons of water. The volume of water decreases by 10 gallons every hour.
Which equation represents this situation if V represents the volume of water left in the tank in gallons and represents the time in hours?

Answers

Answer:

100 - 10x = v

Step-by-step explanation:

Plan-

100 gallons of water to startthen -10 gallons per hourfind v

Steps

[tex]100-10x[/tex] = V

(x repersents the hours)

What is the slope represented in the table ?

Answers

Answer:

slope:2

Step-by-step explanation:

Slope is rise/run, or change in y/change in x.

With that being said, we only need two points to solve this.

Let's take the points (0,7) and (1,9)

The formula for finding the slope from two points is m=(y2-y1)/(x2-x1).

M is the slope.

y2 would be the y-value of the second point,9. y1 would be the y-value of the first point, 7.

x2 would be the x-value of the second point, 1. x1 would be the x-value of the first point, 0.

Plugging those values in to the formula, we get m=(9-7)/(1-0)

Simplifying, we get m=2/1, which is m=2.

Please help me!!!!! AND DO NOT GIVE ME NO GOD DAM LINKS!!!!!!!!!!!! :)

Answers

Answer:

I dont know the answer

Step-by-step explanation:

100 points
Given log34≈1.262 and log37≈1.771, what is the value of log3(7 / 16)?
Use three decimal places
log3(7 / 16) =

Answers

Answer:

-0.753

Step-by-step explanation:

Given

log₃4 ≈ 1.262 and log₃7 ≈ 1.771

To find

log₃(7/16)

Solution

log₃(7/16) = log₃7 - log₃16 = log₃7 - 2log₃4 =1.771 - 2*1.262 = -0.753

log(a/b)=loga-logb

So

log_3(7/16)log_3(7)-log_3(16)log_3(7)-log_3(4²)log_3(7)-2log_3(4)1.771-2(1.262)-0.753

It has the same slope as y=5x+3 and passes through (1, 5).

Answers

Answer:

y=5x

Step-by-step explanation:

Because it has the same slope, both equations must have 5x as their slope. The 2 equations are not going to have the same y intercept, so the +3 can be ignored and replaced with b. You want to plug in (1,5) into you new equation of y=5x+b, to get 5=5(1)+b. Multiply 5 by 1 to get 5, and then subtract 5 from both sides, which gives you 0=b. This means that the y intercept is the origin, so your new equation is y=5x

Y=5x+B
Substitute the point
5=5x(1)+B
5=5+B
B=0
Y=5x+0

what is the range of the data set on this dot plot
A.
B.
C.
D.

Answers

Answer:

B

Step-by-step explanation:

Subtract the minimum number from maximum number.

[tex]10 - 2 = 8[/tex]

please give a full explanation:)

Answers

Answer:

x = 5, y = 2.5

Step-by-step explanation:

Because the original image is scaling down 4, it means all of the values of the shape will be scaled down, or divided by 4.

20, which divided by 4, will make x equal 5.

10, which divided by 4, will make y equal 2.5

PLEASE HELP Write a one chunk paragraph explaining the steps to solve for the equation 3(2x+1)=4x+5

Answers

Answer:

x = 1

Step-by-step explanation:

First perform the indicated multiplication:  

3(2x+1)=4x+5 becomes 6x + 3 = 4x + 5.

Consolidate like terms:   2x = 2

Solve for x:  x = 1

Answer:

Step-by-step explanation:

To solve the equation, first you would multiply 3 times 2x and 3 times 1.  Then, you would write 6x plus 3 on the right side of the equation.  Then, you would subtract 3 from both sides of the equation.  You then will have 6x=4x+2.  Lastly, you would get an answer of x=1

I NEED HELP!!!!! I WILL GIVE YOU BRAINLIEST ANSWER!!!

Answers

Answer:

AC=2.35

Step-by-step explanation:

tan25=AC/BC

0.47=AC/5

AC=2.35

hope it helps

have a great day!!

Last month you purchased 6 individual songs and 1 albums for a total of $21.99.



This month you spent a total of $44.97 on 4 individual songs and 3 albums.

How much does each song and album cost

Answers

Answer:

Song =$1.50 Album =$12.99

Step-by-step explanation:

Lets assume Individual songs = x

albums=y

6x + y = 21.99-------- y= 21.99- 6x

4x + 3y= 44.97

Replace y in the second equation

4x+ 3(21.99-6x) = 44.97

4x +65.97- 18x = 44.97

14x= 21

x = 1.50

y= 21.99- (6*1.50)

= 12.99

In October Sally drove 560 miles in her car.
The car travelled 34.5 miles for each gallon of petrol used.
Petrol cost £1.08 per litre.
1 gallon = 4.55 litres.
Work out the cost of the petrol the car used in October

Answers

Answer: £80

Step-by-step explanation:

First, we need to calculate the number of gallons used by Sally. This will be:

= 560 / 34.5

= 16.23 gallons

Since 1 gallon = 4.55 litres, we calculate the number of liters and this will be:

= 16.23 × 4.55

= 73.85 liters

Since Petrol cost £1.08 per litre, the cost of the petrol will be:

= £1.08 × 73.85

= ££79.758

= £80 approximately

HELP CAN SOMEONE HELP ME MATH I'LL GIVE BRAINLIEST

Answers

Answer:

Student C wrote the correct inequality

the inequality will be less than or equal to since we want to spend (exactly) 300 or less. We only buy one jacket for 60 dollars so it will be added seperately to the total number of jackets. We are buying multiple jackets and each jacket costs $40. P = # of pants. So the inequality will look like

60 + 40P (less than or equal to symbol) 300

Hope I'm not too late :)

what are all possible values for x in the equation x^3=375?
can you please solve this step by step?
will give brainliest​

Answers

Answer:

[tex]x=5\sqrt[3]{3}[/tex] or 7.21

Step-by-step explanation:

x³ = 375

You have to take the square root and have the index 3:

You have to have the index 3 because x is cubed and you have to get rid of the cubed sign since a normal square root is for when the exponent is 2:

[tex]\sqrt[3]{x^3} =\sqrt[3]{375} \\x=5\sqrt[3]{3}[/tex]

In decimal form (rounded to hundredths):

7.21

The circumference of a circle is 9.04cm.
Find the length of the diameter.
Give your answer rounded to 2 DP.​

Answers

C=pi x D
9.04= pi D
D=9.04/pi
or= 2.87
Question:-

The circumference of a circle is 9.04 cm. Find the length of the diameter.

Solution:-

Let the radius of a circle be r cm.

We know the formula of circumference of a circle is 2πr.

ATQ ,

2πr = 9.04

2 × [tex] \frac{22}{7} [/tex] × r = 9.04

[tex] \frac{44}{7} [/tex] × r = 9.04

r = [tex] \frac{9.04 \: × \: 7}{44} [/tex]

r = [tex] \frac{63.28}{44} [/tex]

r = 1.438

Now, as we have to find the length of the diameter ,

So, we know, Diameter (d) = 2 × radius (r)

[tex] \therefore [/tex] d = 2r

Hence, d = 2 × 1.438 ( r = 1.438 )

d = 2.876

d = 2.88 ( approx )

The length of the diameter is 2.88 cm. [Answer]

HELP ASAP PLS!!!!!!!!!!!

Answers

Answer:

157 cm^2

Step-by-step explanation:

area = pi r^2 you need half so 1/2 (3.14) (10^2)= 1/2 (3.14)(100), 1/2 (314)=157

Pls help! question is on picture, will mark brainlyest if its right

Answers

Answer:

60 /120 im not 100% sorry

Step-by-step explanation:

Answer:

61.9 degress or about 62 degress

Step-by-step explanation:

the fraction of sin at theta is 15/17 so put that into a graphing calculator with the inverse sin 15/17

If BC = 6 and AD = 5, find DC.

Answers

The answer is 4. You should’ve posted a picture

-2 + (-3) + 5 please help me with this question and also step by step

Answers

Answer:

0

Step-by-step explanation:

just calculate the simole way

Answer

Zero

Step-by-step explanation:

The negative sign in "-3" cancels out the addition sign making -2 -3 + 5.

In order of operations, you solve it left to right. So -2 -3 = -5

Then -5 + 5 = 0 or 5 - 5 = 0

Please help me with this worksheet.

Answers

1) translation
2) Rotation
3) Reflection
4) Reflection

Could someone please answer this for me

Answers

Answer:

the answer is 144

Step-by-step explanation:

we find area so we multiple all numbers

Answer:

28m

Step-by-step explanation:

split the shape in two to find the shapes you know the area of.

rectangles

8×2 = 16

6×2 = 12

A = 28m

Please help me the question is in the picture and the answers are one of the below

Answers

40%
explanation: 40% of 75 is 30 and the difference between the two prices is $30
hope that helps!!

Kurt and Maria's high school is having a newspaper drive.The goal is to collect 3,585 pounds of newspapers. So far, 21% of the goal has been reached. Kurt estimated the number of pounds of newspapers collected by finding 10% of 3,600 and then multiplying the result by 2. Maria estimated the number of pounds of newspapers collected by finding One-fifth of 3,600.

Answers

Options:

Who is right, and why?

a. Neither Kurt nor Maria is right, because 3,500 should be used instead of 3,600.

b. Kurt is right, because finding 1/5 of 3,600 is not a good way to approximate 21% of 3,585.

c. Maria is right, because finding 10% of 3,600 and multiplying the result by 2 is not a good way to approximate 21% of 3,585.

d. Both Kurt and Maria are right, because 3,585 should be rounded up to 3,600, and 21% of this amount can be approximated by either finding 10% of 3,600 and multiplying the result by 2 or by finding 1/5 of 3,600.

Answer:

d. Both Kurt and Maria are right, because 3,585 should be rounded up to 3,600, and 21% of this amount can be approximated by either finding 10% of 3,600 and multiplying the result by 2 or by finding 1/5 of 3,600.

Step-by-step explanation:

Given

[tex]Goal = 3585[/tex]

[tex]Collected = 21\%[/tex]

[tex]Kurt= 10\% * 3600 * 2[/tex]

[tex]Maria = \frac{1}{5} * 3600[/tex]

Required [Missing from the question]

Who is correct and why?

First, we calculate the actual amount collected.

[tex]Actual = Collected * Goal[/tex]

[tex]Actual = 21\% * 3585[/tex]

[tex]Actual = 752.85[/tex]

[tex]Actual = 753[/tex] --- approximate

Next, determine the estimate (round 3585 to 3600 and 21% to 20%)

[tex]Estimate = 20\% * 3600[/tex]

[tex]Estimate = 720[/tex]

Next, calculate Kurt and Maria's estimates

[tex]Kurt= 10\% * 3600 * 2[/tex]

[tex]Kurt = 720[/tex]

[tex]Maria = \frac{1}{5} * 3600[/tex]

[tex]Maria = 720[/tex]

Hence, Kurt and Maria are correct because of option (d)

Answer:

d

Step-by-step explanation:

Other Questions
The number of traffic citations given daily by two police departments over a two-week period is shown in the box-and-whisker plots. Which statement is NOT true?a.The East department gave the greatest number of citations in one day.b.The East department gave the least number of citations in one day.c.The East department has a greater IQR than the West department.d.The East department has the greater median of citations in one day. which reason best explains why many people choose to live in cities? find the greatest four digits number which is divisible by 12, 18 and 30 3. David's salary is based off commission. The commission is 5% of the sales up to and including$20,000 and 8% of the sales over $20,000 for the month. David sold $37,000 for the month.What was his salary? I get out of bed. Yo _____ Levanto. translate the phrase into a variable expression. use the letter m to name the variable. if necessary, use the asterisk for multiplication and the slash for division. the total number of minutes billed on the phone bill split between 3 phones See the Punnett square above. What are the chances these parents will have offspring with a homo-zygous recessive trait? 2 in 4 (50%) 1 in 4 (25%) O in 4 (0%) 4 in 4 (100%) ( EASY ) Help Please thank you! :) What is the range of the graph below? Which of the following is true about media production? A. All media elements contain a certain type of editorial viewpoint. B. Producing a media text involves both print and images C. Every type of media has a different set of tools and devices available. D. Media producers are all trying to confuse their audience A DSM diagnosis canO tell us very clearly how a person will behave in the futureO provide a detailed description of the person's unique characteristicsO be used as a general label to understand a person's problemtell us the factors that led to the particular disorder What type of planting is a planting technique that helps prevent soil erosion? All members of the Eukarya domain have which of the following characteristics?Have a nucleusAre multicellularAre heterotrophicReproduce sexually what is the equation of the following line please help if u can In the second sentence of the second paragraph, the author uses an em dash to set off a list thatAemphasizes the global nature of the injustices he describesBwarns his audience against feeling complacent about past strugglesindicates the extent of his personal engagement with various civil rights struggles around the worldDstimulates the audience's sympathy by referencing groups with whose struggles they are likely familiarEencourage his audience to join a political movement by enumerating issues likely to engage their interest 2) Which set of ordered pairs represents a function?a) {(2, 3), (3, 5), (2.0), (5,3)}b) {(4,2), (8, 2), (-3, 2), (1, 2)}c) {(-3, 4), (-3, 2), (-3,-4), (-3, 7)}d) {(5,8), (-4,0), (0, -3), (5,-3)} A square postage stamp has area 1,130 mm. About how long is each side? How did the Spanish control the impact the lives of people in their colonies in the americas? Explain Determine the dot product 4,53,2 What happened to the badge system Brainly introduced the other day?i went in my profile to see if there was more badges to earn (by this time i had earned the first three that were availible) and the tab for badges was gone, anyone know whats up?