1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Darya [45]
2 years ago
10

A horse was galloping at average speed of 50km/hr for the first 12 minutes. For the next x minutes, the horse slowed down and it

’s average speed decreases to 30km/hr. The average speed of the horse for the whole journey is 45km/h. Find its total distance travelled in kilometres
Mathematics
1 answer:
Wewaii [24]2 years ago
3 0

The total distance travelled is 1075.91 km.

<h3>What is average speed?</h3>

The average speed is the total distance traveled by the object in a particular time interval. The average speed is a scalar quantity.

45 * (x +12)= 50* 1/5 + 1/2 *x

45x + 540= 10+ 0.5 x

44.5 x = 530

x= 11.91 (neglect the negative sign cause time can't be negative)

So, distance= 45* 23.91 = 1075.91 Km

Learn more about average speed here:

brainly.com/question/13586616

#SPJ1

You might be interested in
(1 point) All that is left in a packet of candy are 7 reds, 3 greens, and 3 blues.
Sauron [17]

Answer:

A 21 /169

B independent

Step-by-step explanation:

The total number of candies is 7+3+3 = 13

P( 1st red) = red/total = 7/13

Since the candy is put back there are still 13 candies in the dish

P(2nd green) = green/total = 3/13

P( red, then green) = P( 1st red) * P(2nd green)

                                = 7/13* 3/13 = 21/169

The events are independent since the candies are put back

4 0
3 years ago
Help please thank you!
monitta

Answer:

• multiplied by 4p: (x -h)² +4pk = 0

• zeros for k > 0: none

• zeros for k = 0: one

• zeros for k < 0: two

Step-by-step explanation:

a) Multiplying by 4p removes the 1/(4p) factor from the squared term, but adds a factor of 4p to the k term. (It has no effect on the subsequent questions or answers, so we wonder why we're doing this.) The result is ...

(x -h)² +4pk = 0

__

b) The value of k is the vertical location of the vertex of the parabola with respect to the x-axis. The parabola opens upward, so for k > 0, the parabola does not cross the x-axis, and the number of real zeros is zero. (There are two complex zeros.)

__

c) As in part b, the value of k defines the vertex location. When it is zero, the vertex of the parabola is on the x-axis, so there is one real zero (It is considered to have multiplicity 2.)

__

d) As in part b, the value of k defines the vertex location. When it is negative, the vertex of the parabola is below the x-axis. Since the parabola opens upward, both branches will cross the x-axis, resulting in two real zeros.

_____

The attached graph shows a parabola with p=1/4 and h=2. The values shown for k are +1, 0, and -1. The coordinates of the real zeros are shown.

8 0
3 years ago
Factor the expression 24x + 18y =
dangina [55]
24x = 2,2,2,3,x
18y = 2,3,3,y
3 0
3 years ago
Read 2 more answers
What is the volume of a rectangular cube that has 5yd, 3yd and another 3yd
iVinArrow [24]

Answer:45cm³

Step-by-step explanation:

Volume=l×b×h

5×3×3=45

3 0
2 years ago
A bank loaned out 12,000 part of it at a rate of 8% per year and the rest at 18% per year. If the interest recurved in one year
spin [16.1K]

Answer:

$11,600

Step-by-step explanation:

amount loaned at 8% and ($12,000 - x) = amount loaned at 18%

Write the equation: (change the percents to decimals: 8% = 0.08 and 18% = 0.18)

(0.08)x + (0.18)($12,000 - x) = $1,000

This expresses the total amount of earned interest in terms of the amounts of the loan, x and ($12,000 - x}.

0.08x + $2,160 - 0.18x = $1,000 Simplify and solve for x.

-0.1x = -$1,160 Divide both sides by -0.1

x = $11.600 The amount loaned at 8% interest.

5 0
3 years ago
Other questions:
  • A 5000 seat theater has tickets at $27 and $40. How many tickets should be sold at each price for a sellout performance to gener
    5·1 answer
  • Determine whether the relation o defined on ℤ is reflexive, symmetric, or transitive. The relation o on ℤ is defined as follows:
    14·1 answer
  • una botella de agua con capacidad de 1 ½ contiene agua en sus ¾ partes ¿cuanta cantidad de agua contiene?
    7·2 answers
  • In the data set {16, 17, 18, 19, 20, 22, 24, 27, 29} how do you find<br> the 2nd quartile
    13·1 answer
  • Find the volume of the sphere in terms of π.
    13·2 answers
  • Si a un múltiplo de 8 le sumo 1 obtengo un múltiplo de 5, ¿qué múltiplos de 8
    9·1 answer
  • PLEASE HELP ON A TEST AND NEED HELP Martin has a larger cube made up of smaller cubes with fractional edge lengths, as shown bel
    7·1 answer
  • Please help Pythagorean theorem <br><br><br> please answer all the question
    12·2 answers
  • A flagpole is propped on the east side corner of the roof of a building. The angle of depression from the top of the flagpole (A
    7·1 answer
  • Two wires
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!