Two cars leave simultaneously from points A and B, the distance between which is 280 km. If the cars move to meet each other, they’ll meet in 2 hours. But if they move in the same direction, then the car going from point A will catch up with the car going from point B in 14 hours. What is the speed of each of the cars?

Answers

Answer 1

Answer:

Car A speed = 80 m/s

Car B speed = 60 m/s

Step-by-step explanation:

Let Speed of Car A be represented as x

Let Speed of Car B be represented as y

280 = (x+y)(2)140 = x+y --> Equation 1

Let z represent the distance that Car A travels until it catches up to Car B

280+z = x(14)

Since it takes 14 hours for Car B to cover the distance z,

z = 14y280+14y = 14x280 = 14(x-y)20 = x-y --> Equation 2

Solving Equation 1 and Equation 2, we get:

x = y+20140 = 2y+20120 = 2yy = 60 x = y+20 = 80

Answer 2

Answer:

Car A speed = 80 km/h

Car B speed = 60 km/h

Step-by-step explanation:


Related Questions

The americans with disabilities act sets a maximium angle for a wheelchair ramp entering a business at 4.76 degrees. Determine the horizontal distance needed to occomidate a ramp that goes up to a door.

Answers

Answer:

d = 48.03 feet

Step-by-step explanation:

Given that,

The maximum angle for a wheelchair ramp entering a business at 4.76 degrees.

We need to find the horizontal distance needed to accomidate a ramp that goes up to a door 4 feet of the ground.

We can solve it using trigonometry.

[tex]\tan\theta=\dfrac{h}{d}[/tex]

Where

h is height

d is the angle of elevation

[tex]d=\dfrac{h}{\tan\theta}\\\\d=\dfrac{4}{\tan(4.76)}\\\\d=48.03\ ft[/tex]

So, the horizontal distance is equal to 48.03 feet.

$10,000 is what percent of $10,000?
Ples help me

Answers

Answer:

100%

Step-by-step explanation:

Answer:

100 percent

Step-by-step explanation:

This is very easy. Try learning it yourself as when you'll grow the stuff you are learning now will be essential to your learning. Your future learning depends on it.

Solve for X, show work PLS =)
½(4x+2)=2x-4

Answers

4x+2=4x-8
2=-8
answer: no solutions

Find 2 and 3 please explain how u got ur answer

Answers

1) ?=102 degrees
2) x=132 degrees
3) y=69 degrees and x=96 degrees
i hope the photo helps show you each step

During the past 7 weeks digo spent between 11 and 17 for much lunch each week

Answers

This is not a proper question. Try adding some more information so that it can be solved!

a bakery reduced the price of their cakes from $35 to $28 each

Answers

Answer:its actually 20%

Step-by-step explanation:

I looked it up

Please help solve correctly. NO links or files. Correct answers only if not report. I will even give an additional 10 if correct.

Answers

Answer:

Im not sure if you have to provide an exact or estimated answer so here's both:

314.16 cm3     or   100pi

Answer:

100π

Step-by-step explanation:

[tex]V=\frac{pi r^{2} h}{3} \\ =\frac{pi*5^{2}*12 }{3} \\ =pi*5^{2} *4\\ =pi*25*4\\ =pi*100[/tex]

Sorry I had to write pi instead of π in the equation

Kathi had a rope of 63.45 m. She cut the rope into two pieces. If the length of one piece was 23.59 m, what was the length of the other piece?

Answers

Answer:length of the other piece=39.86m

Step-by-step explanation:

Total length of rope =63.45 m

length of one piece = 23.59 m

Since the rope was cut into two pieces, we subtract the length of  known first piece from the total length

length of the other piece  = 63.45 m-23.59 m=39.86m

Which do you pick and why? How much money do you end up with in each case?

Answers

Answer:

2

Step-by-step explanation:

Because if you get 1 per day there is 24 hours meaning there is going to be 17,280 in 30 days so you end up making more in 30 days by getting 1,000,000

Find the sum of the digits in the product of: 1001x1001x1001

Answers

Answer:

1003003001

Step-by-step explanation:

1001x1001x1001=1003003001

Answer:

1,003,003,001

Step-by-step explanation:

[tex]1001^3=1,003,003,001[/tex]

What is the value of y in the equation 4y - 2(1 - y) = -44?
-23
-15
оооо
-14
-7

Answers

Answer: -7

Explanation:
4y-2(1-y)=-44
Distribute: 4y-2+2y=-44
Combine like terms: 6y-2 = -44
Simplify: 6y = -42
Y = -7

Hellllllp pleas if you want brainliest answer both

Answers

Answer:

1 is 15

2  the formula of a  trapizod and the are is 35

Step-by-step explanation:

A=a+b2h=2+5 2·10=35

have a good day/night

may i please have a branlliest

Answer:

1) 15

2) formula is y=1/2(5+2)10, area is 35 square miles

Step-by-step explanation:

Ms. Burk asked her students to simplify expressions. The students answers 4 points
are in the table below. Select the correct option for each expression. *
Student Equivalent Expressions
Emily 3t + 5t - 2t = 6t
Joseph 6(2b + 5) = 12b x 30
Nico
2(5r - 9) = 10r - 18
Katie 5(4d - 5) =20d - 25

Answers

Answer: is the teacher mr.Burks? what school you go to if it is costa mesa high i know i had her and still have the notes!

i think it its nico and katie but just wait for someone else to answer

Step-by-step explanation:

The Monday after Thanksgiving is called Cyber Monday. Amazon is
offering deals on many popular items. The same drone helicopter
is normally sold for $179.99, but on Cyber Monday, Amazon will be
selling it for $125.99. What is the percent change on the drone. Round to the nearest percent

Answers

Answer:

the percentage change on the drone is 42.86%

Step-by-step explanation:

The computation of the percentage change is shown below:

Since the helicopter was sold for $179.99

But amazon would be selling it for $125.99

So, the percentage change would be

= (Sale value -  sale value by amazon) ÷ ( sale value by amazon) × 100

= ($179.99 - $125.99) ÷ ($125.99) × 100

= 42.86%

Hence, the percentage change on the drone is 42.86%

Write two solution points for the equation y=3x-1 when x us 1 and x is 2

Answers

Answer:

x=1. (1, 2)

x=2. (2, 5)

Step-by-step explanation:

i hope this helps :)

Convert 0.9 cm into m

Answers

Answer is 0.009

0.9 ( 0.01 m / cm  ) = 0.009

a 3 inch radius circle is drawn inside a 7 in radius Circle if you throw a dart at the circles what is the probability you land inside the smaller circles​

Answers

Answer:0.82

Step-by-step explanation:

The first step is to determine the areas of the inner and the bigger circles.

The formula for determining the area of a circle is expressed as

Area = πr²

Where

r represents the radius of the circle.

π is a constant whose value is 3.14

Considering the inner circle,

diameter = 148.4 cm

Radius = 3 inches

Area = 3.14 × 3² = 28.26 inches²

Considering the bigger circle,

Radius = 7 inches

Area = 3.14 × 7² = 153.86 inches²

The area between the bigger and inner circles is

153.86 - 28.26 = 125.6 inches²

Probability = number of favourable outcome/number of total outcome.

the probability you land inside the bigger circle but outside smaller circle is

125.6/153.86 = 0.82

Help me with this problem please

Answers

Answer:

I'm not 100% sure, but I think the answer is 10 units squared.

Step-by-step explanation:

Find the area of each triangle, by multiplying each side, and dividing the answer in half. Add both of the triangles together, ending up as 6. Now we just find the area of the square. 2x2=4, add that to both of the triangles, and we're done. (2x2) ÷ 2 = 2 | (2x4) ÷ 2 = 4 | 2x2 = 4 | 4+4+2=10

Answer:

area=10 units^2

Step-by-step explanation:

[tex]a=\frac{(2+2+4)+(2)}{2} *2\\ =\frac{8+2}{2} *2\\ =\frac{10}{2} *2\\ =5*2\\ =10[/tex]

a=10 units^2

Shirts are on sale for 30% off. The original price of one shirt is $15. What is the total cost, in dollars, of 2 of these shirts at the sale price, including a 7% sales tax?

Answers

Answer:

I pretty sure the answer is $22.47

Step-by-step explanation:

15+15=30-30%=21+7%=22.47

Answer:

Hi ! The answer to your question would be $23.54

Step-by-step explanation:

30% off of $15 would bring you to $10.50, if you add $10.50 twice u would get $21. The 7% sales tax would be $2.54, adding that to $21 you get $23.54

Find the quotient of these complex numbers. (3 + 3i) / (5 + 4i) =
Plz help

Answers

Answer:27/41+3/41i

Step-by-step explanation:

Just finished this problem

Answer:

guy above correct via A P E X

Step-by-step explanation:

Ditch Digging Problem Doug Upp can dig a ditch in 3 hours. His
brother Phil could dig the same ditch in 5 hours. How long would it take to dig the ditch if both work together?

Answers

It’s definitely less than 8 because when two people work together it takes less time

Could someone help? And quick cause im getting ready for bed!!

Answers

Answer:

help with what? could you add a picture?

find the excerpted value ​

Answers

Answer:

The expected value is $4.35

Step-by-step explanation:

Here, we want to find the expected value

To

do that, we simply will multiply each of the payouts by the individual probabilities, then add the results

Mathematically, we have this as;

0.35(1) + 0.2(2) + 0.1(5) + 8(0.2) + 10(0.15)

= 0.35 + 0.4 + 0.15 + 1.6 + 1.5 = $4.35

NO LINKS and whoever answers correctly and first gets the brainliest

Answers

Answer:

i think it is A

Step-by-step explanation:

Answer:

A)  m = 1300 - 35(8)

Step-by-step explanation:

If your savings account has $1300 in it, and 35 is being taken away every month for 8 months, then you would multiple the months by the amount of money being taken away then subtract the amount from the total amount of money in her account. There for 'm = 1300 - 35(8)'.

Barney ate 21 M&M's. If he ate 15% of the bag of M&M's, how many were in the bag to start?

Answers

Answer:

140

Step-by-step explanation:

15/100 = 21

21*100= 21000

21000/15= 140

A square room in Denise's house measures 15 feet by 15 feet. Find the length of the diagonal of the room, rounded to the nearest tenth

Answers

Answer: 21.2

Step-by-step explanation:

No links man and please if you have a question about anything comment it.

Answers

Answer:

29=1/2

30=1/5

31=1/12

32=1/6

33=1/7

Step-by-step explanation:

I just counted the numbers and then put them as fraction.

You and your friend are watching a television show . One of your friends ask,'How long are the commercials breaks during this show ?"


Time (minutes)
4.2 3.5 4.55 2.75 2.25

A . Use the mean of the values in the table to answer question

Commercial breaks average ___ minutes

Answers

3.45 (4.2+3.5+4.55+2.75+2.25)/5

3.45 (4.2+3.5+4.55+2.75+2.25)/5

Will mark brainliest

Answers

[tex] \frac{19}{6} \pi \times \frac{360}{75} = \frac{19}{6} \pi \times \frac{24}{5} = \frac{76}{5} \pi[/tex]

[tex] {x}^{2} \times \pi = \frac{76}{5} \pi[/tex]

[tex]x = \frac{2 \sqrt{95} }{5} = 3.9[/tex]

What does the following equal? Please help me!

Answers

Answer:

the first answer

Step-by-step explanation:

1/8 of the absolute value is 1/8 positive

anything from the absolute value is positive because absolute value is the value of how far away the number is from zero.

Answer:

-1/8

Step-by-step explanation:

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