The answer to the picture please

Hemant and Ajay start a two-length swimming race at the same moment but from opposite ends of the pool. They swim in the lane an

Alenkinab [10]

Answer:

Let length of the pool be L.

Deep

A —————————————><———————————----———————————— H

.................(18.5m)

H ——————————————————————————-———><————————- A

..............................................................................................................(10.5)

In same time, Andy covers 18.5 and Hardy covers L - 18.5.

In same time, Andy covers L - 18.5 + 10.5 while Hardy covers 18.5 + L - 10.5

The ratio of these distances covered would be the same since the speeds of both people are constant.

18.5/(L - 18.5) = (L - 8)/(L + 8)

Plug in the options to find that L = 45 works.

5 0

3 years ago

Which of the following has the greatest volume ?

katen-ka-za [31]

Answer:

D

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A certain model car has a keypad with 5 numbers on the door. To open the door, 5 numbers must be entered in the correct

MrRissso [65]

Answer: A. $\dfrac{1}{120}$

Step-by-step explanation:

Total digits on keypad = 5

According to permutation,

If repetition of digits is not allowed then the number of 5-digits passwords can be formed = 5!

= 5 x 4 x 3 x 2 x 1 [n!=n x (n-1) x (n-2)x ... x 1]

=120

The probability that someone guesses the correct code = $\dfrac{\text{Number of correct codes}}{\text{Total possible codes}}$

$=\dfrac{1}{120}$

Hence, the correct option is A.

8 0

3 years ago

The distance from Jason’s house to school is 0.5 km what is the distance in meters

valkas [14]

Answer:

500 meters

Step-by-step explanation:

1km=1000meters so 0.5km=500m

7 0

3 years ago

Using a scale of 1 to 10 billion model solar system, what is the diameter and distance from the sun using diameter of 4880km and

Yuki888 [10]

Answer:

Diameter Orbit Radius Diameter Orbit Radius

average average average average

km km cm km

1,392,000 Sun 13,920,000,000

4,879 57,910,000 Mercury 48,790,000 5,791,000

12,100 108,200,000 Venus 121,000,000 10,820,000

12,740 149,600,000 Earth 127,400,000 14,960,000

6,779 227,900,000 Mars 67,790,000 22,790,000

950.0 413,800,000 Ceres

Asteroid Belt 9,500,000 41,380,000

139,800 778,600,000 Jupiter 1,398,000,000 77,860,000

116,500 1,433,000,000 Saturn 1,165,000,000 143,300,000

50,720 2,877,000,000 Uranus 507,200,000 287,700,000

49,250 4,503,000,000 Neptune 492,500,000 450,300,000

2,372 5,874,000,000 Pluto

Kuiper Belt 23,720,000 587,400,000

Step-by-step explanation:

5 0

3 years ago