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
Olin [163]
3 years ago
10

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

d at a uniform speed, but Hemant is faster than Ajay. They first pass at a point 18.5 m from the deep end and having completed one length, each one is allowed to rest on the edge for exactly 45 seconds.After setting off on the return length, the swimmers pass for the second time just 10.5 m from the shallow end.How long is the pool?
Mathematics
1 answer:
Alenkinab [10]3 years ago
5 0

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.

You might be interested in
Write an inequality the score in a basketball game is greater than or equal to 10 points
andreev551 [17]
S greater than or equal to 10
4 0
3 years ago
2/3 times 8<br> Please answer quick
Natali5045456 [20]

Answer:

16/3 or 5 1/3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help asap i’m stupid
nevsk [136]

Answer:

74

Step-by-step explanation:

Say that arc JL going through M is arc E and JL going the other way is arc D

For the angle formed by two tangents, K=(1/2)(E-D)

64=E-D

Furthermore, angle K and central angle JCL (facing toward K) are supplementary, so 180-K=JCL=180-32=148

Thus, as the angles around angle C add up to 360, angle JCL (facing toward M) is 360-148=32+180=212

E is then 212

64=212-D

212-64=D=148

Thus, as JML is an inscribed angle, M=1/2(D)=1/2(148)=74

3 0
3 years ago
Solve for x .<br><br> 18 ÷ x = -2 <br> x =
Ratling [72]
X would equal -9
Because -9 times -2 equals 18
5 0
3 years ago
Read 2 more answers
Find the perimeter of ABCD<br> Find the area of Area
san4es73 [151]

Step-by-step explanation:

A = (1, 3)

B = (3, 6)

C = (9, 2)

D = (7, -1)

the distance between 2 points is given by the Pythagoras equation based on the coordinate differences as legs of virtual right-angled triangles.

AD for example we get from

AD² = (7-1)² + (-1 - 3)² = 6² + (-4)² = 36 + 16 = 52

AD = sqrt(52) = sqrt(4×13) = 2×sqrt(13)

and AB we get from

AB² = (3-1)² + (6-3)² = 2² + 3² = 4 + 9 = 13

AB = sqrt(13)

the perimeter of the given rectangle is

2×sqrt(52) + 2×sqrt(13) = 2×2×sqrt(13) + 2×sqrt(13) =

= 6×sqrt(13) = 21.63330765...

and the area of the rectangle is

2×sqrt(13)×sqrt(13) = 2×13 = 26

7 0
2 years ago
Other questions:
  • Solve the system of equations. \begin{aligned} &amp; -10x+3y = 5 \\\\ &amp; x=y-4 \end{aligned} ​ −10x+3y=5 x=y−4 ​
    7·1 answer
  • Need help on #18 please
    13·1 answer
  • Find modulus and principle argument of compiles numbers Z=5/2(cos300+isin300)
    13·1 answer
  • I need help , I can’t get this
    6·1 answer
  • Jeff invests an amount at 4% interest compounded annually. After 3 year he has 1687.30, What was the original amount jeff invest
    8·1 answer
  • In the last month, the ratio between Davis's monthly expenditure and his monthly salary was 3 : 7. What percentage of his monthl
    14·1 answer
  • A cone-shaped paper cup can hold 35 cubic inches of food. If the radius of the cone is 2.4 inches, what is the height of the con
    14·1 answer
  • Random Questions To Answer For Points.
    15·1 answer
  • Write the following expression without negative exponents and without parentheses.
    8·1 answer
  • The product Of 25 and n is less than negative 125 which inequality represents the possible values for n
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!