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
tamaranim1 [39]
3 years ago
6

Of the 10,000 participants in the Cooper Run/Walk, 42% were runners and one-third of the runners were female. Sally, a female ru

nner, finished faster than exactly 90% of the female runners. What is the greatest number of female runners who could have finished faster than Sally?
Mathematics
1 answer:
Aleks [24]3 years ago
5 0

Answer: 140 female runners

Step-by-step explanation:

First find out the number of runners:

= 42% * 10,000

= 4,200 runners

Then find out the number of female runners:

= 4,200 * 1/3

= 1,400 female runners

Sally finished faster than 90% of the female runners which means that 10% finished faster or at the same time as her.

= 10% * 1,400

= 140 female runners

You might be interested in
The dishes have been sorted into cups and plates. The number of plates is four less than two times the number of cups. The dishe
Nady [450]

Answer:

The number of cups = 8 ....

Step-by-step explanation:

Let x be the number of cups

Let y be the number of plates

According to the given statement:

y=2x-4   This is equation 1

Now,

60% = 0.60

y=0.60(x+y)    This is equation 2

Now substitute equation 1 in equation 2.

y=0.60(x+y)

2x-4=0.60(x+2x-4)

2x-4=0.6x+1.2x-2.4

Solve the like terms:

2x-4=1.8x-2.4

2x-1.8x=4-2.4

0.2x=1.6

x=1.6/0.2

x= 8 cups

Therefore the number of cups = 8 ....

7 0
3 years ago
A rectangle has an area of 40 sq units , then length is 6 units greater than the width
devlian [24]

Answer:

A=L*W

Let w be width

L=(w+6)

40=(w+6)*w

40= w^{2} +6w

w^{2} +6w-40=0

w^{2}+10w-4w-40=0  

w(w+10)-4(w+10)=0

(w-4)(w+10)=0

w=4

Length= 10 units

Width=4 units

Step-by-step explanation:

6 0
3 years ago
Between x = 2 and x = 3, which function has the smallest average rate of change?
Amiraneli [1.4K]
They both have the same rate of change
8 0
3 years ago
Read 2 more answers
What is the multiplicative inverse of −9?
Romashka-Z-Leto [24]

Answer:

The answer to your question is: letter C

Step-by-step explanation:

Multiplicative inverse is a pair of numbers which product gives 1.

Then

x will be our number

                     -9x = 1

                        x = - 1/9

because

                    -9 x  \frac{-1}{9} = \frac{9}{9} = 1

8 0
3 years ago
Another way to write 1/2
earnstyle [38]
½=0.5.................
3 0
3 years ago
Read 2 more answers
Other questions:
  • I got 5 more math problems to do and I’m done please help
    13·2 answers
  • Please please answer my question please ASAP
    6·2 answers
  • Simplify <br><br> 2√10 * 3√12<br><br> Please don’t guess I beg u
    14·1 answer
  • Construct the indicated confidence interval for the difference between the two population means. Assume that the two samples are
    10·1 answer
  • Danny walks at an average speed of 5 m/s foe 1 minute. Work out the distance that Danny has travelled in metres.
    6·2 answers
  • What is the image of the point (-7,-8)(−7,−8) after a rotation of 270 counterclockwise about the origin?
    11·1 answer
  • Sam the squirrel monkey is a homebuilder. He is randomly choosing paint and siding colors for a house he is working on. The home
    8·2 answers
  • Solve each equation.<br> 1) -133 = 7(-3 + 4v)
    9·2 answers
  • Solve each system of equations by adding.
    15·1 answer
  • What is the measurement of Angle JKL? *
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!