Mr Dunn drives 640 m from work at a speed of 4.8m/s mrs. dunn  drives 810 m from work at speed of 5.4m/s they both leave work at the same time how many minutes later is it before the second person gets home

Answers

Answer 1
speed = distance/time
time taken = distance/speed

Mr Dunn’s speed = 4.8 m/s
The distance Mr Dunn needs to travel = 810 m
Time taken = 640/4.8 = 133.33 s
133.33 s = 2.22 min

Mrs Dunn’s speed = 5.4 m/s
The distance Mrs Dunn needs to travel = 810 m
Time taken = 810/5.4 = 150 s
150 s = 2.5 min

Time difference = 2.5 - 2.22 = 0.28 min

Answer: It is 0.28 min later before the second person gets home.

Related Questions

What is the midpoint between points (4, 7) and (1, 1)?

Answers

Answer:

(2.5, 4)

Step-by-step explanation:

Refer to the formula above. We will sub our points into it.

(4, 7) (1, 1)

(x¹, y¹) (x², y²)

[tex]( \frac{4 +1}{2} \frac{7 + 1}{2} )[/tex]

(5/2, 8/2)

(2.5, 4)

Help me please!!!!!!!!!!!!

Answers

angle 4 is 144
180- angle 3 (36degrees) = 144 degrees

The freshman convention was held at the activity center with 12 567 seats. If 120 seats were not occupied. How many seats were occupied?​

Answers

The answer would be 12447 seats were occupied

Hope this helps

Have a great day/night

Feel free to ask any questions

PLEASE HELP ONLY IF YOUR FOR SURE!! <3 What is the value of x in the figure?

Enter your answer in the box.

x =

Answers

Answer:

68. We just subtract 22 from 90

Please help giving brainliest

Answers

Answer:

this is a scalene triangle. we can see that none of the side lengths and none of the angles are equivalent to each other. that's why it's scalene.

(4x+7) (4x-7)=
give the solution pleasee​

Answers

Answer:

16x - 49

Step-by-step explanation:

Answer:

Im not sure 4x+8 and then 4×-7??? do it on your calendar frl amd you can see amd type exactly what the guesting..

A specialty shop procures silver necklaces for 15$ a piece and offers them to customers for 33$ each. What is the mark-up percentage?

Answers

Answer:

54.5%

Step-by-step explanation:

Given data

Cost price= $15

Selling price= $33

Mark up percent =????

%markup= selling-cost/selling*100

substitute

%markup= 33-15/33*100

%markup= 18/33*100

%markup=0.545*100

%markup= 54.5%

Hence the Percent markup is 54.5%

The equations 3x - 4y = -2,4x-y-4, 3x+4y= 2, and 4x+y=-4 are shown on the graph below.
-5
0
5 X
Which is the approximate solution for the system of equations 3x+4y = 2 and 4x+y=-4?

Answers

Answer:b

Step-by-step explanation:

triangle ABD~ triangle DBC the perimeter of triangle ABD=36, fond the perimeter of triangle DBC.

Answers

Answer:

Perimeter of ΔDBC = 48 units

Step-by-step explanation:

It's given in he question,

ΔABD ~ ΔDBC

Therefore, by the definition of similar triangles,

Corresponding sides of both the triangle will be proportional.

[tex]\frac{AB}{DB}= \frac{BD}{BC}= \frac{AD}{DC}[/tex]

[tex]\frac{9}{12}= \frac{12}{16}= \frac{AD}{DC}[/tex]

[tex]\frac{3}{4}=\frac{AD}{DC}[/tex]

AD = [tex]\frac{3}{4}DC[/tex] ----------(1)

Since, perimeter of ΔABD = 36,

AB + BD + AD = 36

9 + 12 + AD = 36

AD = 36 - 21

AD = 15

From equation (1),

15 = [tex]\frac{3}{4}(DC)[/tex]

DC = 20

Perimeter of ΔDBC = DB + BC + DC

                                = 12 + 16 + 20

                                = 48

Therefore, perimeter of ΔDBC = 48 units is the answer.

Please help with ALEKS >-< ..................................

Answers

Answer:

4.5

Step-by-step explanation:

From the file, we see that;

Horizontal distance from bottom of ladder to side of house = 2

Length of ladder leaning against side of the house = 4 m.

Now we want to find the distance from the top of the ladder to the ground which we can call d.

Thus we can find it from pythagoras theorem.

d = √(2² + 4²)

d = √(4 + 16)

d = √20

d = 4.47

To the nearest tenth gives;

d = 4.5

Evaluate the expression and enter your answer below.

6^2-3

To the power ​

Answers

Answer:

[tex]33[/tex]

Step-by-step explanation:

[tex]6^2-3[/tex]

First we do 6^2:

[tex]6^2\\6*6=36[/tex]

Now we have to subtract by 3:

[tex]36-3=33[/tex]

33 is your final answer.

6^2-3

Start by doing the power

6^2 = 36

Now subtract by the number 3 to get our answer

36-3=33  (Answer)

Microsoft Rewards

Earn Gift Cards using Microsoft Rewards by searching daily and completing daily tasks.

4х2 - 3x + 2,
How many terms are there

Answers

Answer:

3

Step-by-step explanation:

We are given an expression and are asked how many terms are there.

When it comes to terms, we need to see how many numbers have different endings, this can be variables, symbols, and exponents.

Looking into it, we see 4x^2 - 3x + 2

These are all different terms, therefore there are 3 different terms.

solve for x in : 5^{2x-1} =12^{x}

Answers

Answer:

x=2.192785

Step-by-step explanation:

52x−1=12x

log(52x−1)=log(12x)

(2x−1)*(log(5))=x*(log(12))

2x−1=(

log(12)

log(5)

)*(x)

2x−1=1.543959*x

2x−1=1.543959x

2x−1−1.543959x=1.543959x−1.543959x 1.543959x

0.456041x−1=0

0.456041x−1+1=0+1

0.456041x=1

0.456041x

0.456041

=

1

0.456041

0.456041)

x=2.192785

Answer:

x = 2.19

Step-by-step explanation:

Given that,

An equation, [tex]5^{2x-1} =12^{x}[/tex]

To find,

The value of x.

Solution,

We have,

[tex]5^{2x-1} =12^{x}[/tex]

Taking log both sides,

[tex]\text{log}(5^{2x-1})=\text{log}(12^x)[/tex]

We know that,

[tex]\text{log}\ a^n=n\ \text{log}a[/tex]

So,

[tex](2x-1)\text{log}5=x\ \text{log}12[/tex]

So,

[tex](2x-1)0.6989=1.0791x\\\\1.3978x-0.6989=1.0791x\\\\1.3978x-1.0791x=0.6989\\\\0.3187x=0.6989\\\\x=\dfrac{0.6989}{0.3187}\\\\x=2.19[/tex]

So, the value of x is equal to [tex]2.19[/tex].

Reference,

https://brainly.com/question/14968632

find x or solve for x .​

Answers

X=35 because I know I’m no dummy

Ashley made 2 out of 4 total shots. What percent of her shots did she make?

Answers

Answer:

50%

Step-by-step explanation:

2 divided by 4 is .5

.5 ×100 =50

if you simplify in fraction form it would be 2/4 equals 1/2 which would still give you the same answer

Nathan launches a water balloon vertically from a platform on his roof. The height of the balloon (in feet) is represented by the equation h=−16t2+28.7t+32.4, where t is the time (in seconds) after he launches the water balloon. What is the maximum height of the balloon?

Answers

Answer:

45.27feet

Step-by-step explanation:

Given the height of the balloon (in feet) represented by the equation h=−16t2+28.7t+32.4, where t is the time (in seconds)

Note that the velocity of the balloon at maximum height is zero, hence;

v = dh/dt =0

-32t+28.7 = 0

-32t = -28.7

t = 28.7/32

t = 0.897secs

Get the maximum height

Recall that h=−16t²+28.7t+32.4

h = -16(0.897)²+28.7(0.897)+32.4

h= -12.87+25.74+32.4

h = 45.27feet

Hence the maximum height reached is 45.27feet

What is the solution to the inequality?
n - 15 > -5
pls help ‍♀️

Answers

Step-by-step explanation:

Given inequality

n - 15 > - 5

The inequality can also be written as :

n - 15 = - 5

n = - 5 + 15

n = 10

or

n > 10

Hope it will help :)

Answer:

n>10

Step-by-step explanation:

n-15>-5

n>-5+15

n>10

Determine the number of operations needed to solve 7c = 84

Answers

Answer:

12

Step-by-step explanation:

7c=84

c=84/7

c=12

Answer:

2

Step-by-step explanation:

You need division and multiplication (division for 84/7 and multiplication to identify 7c = 7 x c), which means 2.

Hope that helps!

Jon and Keith save money at the end of each month and begin saving money at the same time . Jon's savings after m months are modeled with the formula f(m) = 40m + 20 Keith's savings after m months are modeled with the formula g(m) = 35m + 45 At the end of how many months will they have saved the same amount of money ?

Answers

Answer:

g5654

Step-by-step explanation:

Brainliest to whoever gets it right: Apply the appropriate mathematical operation to solve this occupation related problem.

Labor rate: $8.75 per hour.
Hours worked: 16
Total price of services: $224

Overhead rate: %

Answers

Answer:

37.5%

Step-by-step explanation:

Labor rate = 8.75 dollars per hour.  

Hours worked = 6

Direct cost of labor = 140 dollars

Total price of services = 224 dollars

Therefore, the overheads = 84 dollars which is

84 X 100 / 224 = 37.5%

Find slope. I NEEDDDD HELPPPPP IMA MARK BRAINLIESTTT

Answers

-1/3


hope this helps :)

Answer:

-1/3

Step-by-step explanation:

Find the area of a regular pentagon with an apothem of 8.95 cm and a side length of 13 cm. (round to the nearest whole number)

Answers

Answer:

C) 291 cm^2

Step-by-step explanation:

Sorry it took me so long to answer, but I am taking a test with this question and I want to make sure I got it right on the test before I gave you the answer.

The test I am taking is on USA TESTING and I got 100

Find the remainder when 2x^3 + 15x^2 + 31x + 12 is divided by (x-1)​

Answers

Answer:

1/

2 3 15 2 31 12

2 1 14 -12 43

__________________

2 1 14 -12 43 -31

so the answer is r=-31

Answer:

remainder = 60

Step-by-step explanation:

Given f(x) divided by (x - h) then the remainder is f(h)

f(x) = 2x³ + 15x² + 31x + 12 , then

f(1) = 2(1)³ + 15(1)² + 31(1) + 12

     = 2 + 15 + 31 + 12 = 60 ← remainder

PLEASE HELP ANSWERS ONLY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

1. 13n+15

2. 12n+18

3. 18n+12

A store wants employees to start wearing uniforms to work. The plans to purchase the uniforms and hand out 5 uniforms to every employee one for each day or the week. Uniforms come in packs of 8, and the store plans to purchase 56 packs of uniforms. How many employees can the store give uniforms to?

Answers

Answer:

89 employees

Step-by-step explanation:

Uniforms come in packs of 8, and the store plans to purchase 56 packs of uniforms.

This means

1 pack = 8 uniforms

56 packs = x uniforms

Cross Multiply

x = 56 × 8 uniforms

x = 448 uniforms

The plan is to hand out 5 uniforms to every employee one for each day or the week.

Hence, the number of employees that the store can give can uniforms to is calculated as:

5 uniforms = 1 employee

448 uniforms = x employees

Cross Multiply

5x = 448 × 1 employee

x = 448/5

x = 89.6 employees.

Since a person cannot be represented by decimal, the store can give uniforms to 89 employees

Which is equivalent to 72 inches?
O A 0.72 yards
O B. 2 yards
O c. 6 yards
O D. 7.2 yards
O E. 36 yards

Answers

the answer is B because there is 36 inches in 1 yard

Answer:

Its 2 yards

Step-by-step explanation:

divide 72 by 36

PLEASE HELP!!! I need an urgent answer and I'll give brainiest just please answer this easy question!

Answers

do like show in pic

hope it helps you

a b c d e f g h i j k l m n o p q r s t u v w x y z

Answers

Answer:

???

Step-by-step explanation:

Answer:

now i know my abc's

Step-by-step explanation:

In parallelogram BCDE if m EBC=45 find m DEB

Answers

Answer:

x = 135

Step-by-step explanation:

parallelograms have supplementary angles

180 - 45 = 135

Answer:

x = 135 degrees

Step-by-step explanation:

Because this is a parallelogram, the opposite sides are parallel

45 and x = 180 because they are corresponding congruent angles

180-45=135

Which pair of numbers has a sum of 100?

( A) 39,61

(B) 49,61

(C) 59, 51

(D) 39,51

Answers

Answer:

a

Step-by-step explanation:

 39+61 is the only pair that make 100.

Other Questions
The constant of 2/3 cupcakes per minute means that in a minute, 2/3 of a cupcake is made. Given the graph of w(x), w(2) = ?(the graph is below) In the sentence, who goes there? The word who is an example of a/an __ pronoun Which site in the accompanying cross section is the most likely setting for an oil field determine the slope of the line 90. Find 33.3% of 81. Which of the following is a sentence fragment always beats her brother at basketball What is the solution to the system of equations? (7, 4) (7, startfraction 13 over 3 endfraction) (8, startfraction 14 over 3 endfraction) (9, 7) Glycolysis occurs in a series of 10 steps using 10 different enzymes. Place the following broad events that occur during glycolysis into their correct order. The limits of trade are those initial _____________ positions that each nation has at self-sufficiency. True or false? The graph represents a function.5O A. TrueO B. False Which supreme court case is most closely associated with the exclusionary rule? Tightness of the muscles can clamp down on the sciatic nerve and result in lower back pain. please select the best answer from the choices provided. t f Which other body areas would if tested prove to have a high density of sweat glands? A pie with a temperature of 140F is taken out of the oven and placed on a windowsill to cool. Its temperature as a function of t minutes is given byT(t)=68e0.0174t+72How long, to the closest minute, will it take for the pie to cool to 80F? a short sequence of DNA is replicated using a mixture of dideoxynucleotide triphosphates, which lack a hydroxyl group at the 3' location. The new strands are separated from the old DNA Could someone please draw the triangle based off of this description Consider a good to which a per unit tax applies. the size of the deadweight that results from the tax is smaller if:________ Who was a colonial-era minister known for religious tolerance?William BradfordJohn WinthropRoger WilliamsMartin Luther Output per hour of work is the definition of:_______a. the marginal product of labor b. increasing returns to labor c. labor productivity d. diminishing returns to labor Associations detected between measures of neighborhood environmental conditions and human microbiome diversity.