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
natka813 [3]
3 years ago
13

In a walking competition, Marlinda was 15m ahead of Sandra Evliani. Marlinda steps 1m each time Sandra Elviani’s foot steps 0.8m

. How many steps does Sandra Elviani have to make to match Marlinda?​
Mathematics
1 answer:
weqwewe [10]3 years ago
5 0

Answer:

Given that in a walking competition, Marlinda was 15m ahead of Sandra Evliani, and Marlinda steps 1m each time Sandra Elviani's foot steps 0.8m, to determine how many steps does Sandra Elviani have to make to match Marlinda, the following calculation must be performed:

Since Sandra Elviani walks 0.8 meters for every 1 meter that Marlinda walks, and that she has an advantage of 15 meters in the competition, it is impossible that at that rate Sandra can reach her. This is so because for each step of Marlinda, Sandra will be 0.2 meters behind her, increasing the distance (1-0.8).

You might be interested in
I am confused about ii) help please
Jobisdone [24]

Step-by-step explanation:

i)=

m=2/3

x=-3

y = 5

now

y=mx+c

or, 5 = 2/3× -3 + c

or, 5 = -2+c

c =7

now,

y= mx + c

or, y = 2/3×x+7

or, y = 2x/3+7

or, 3y = 2x+21

so, 3y-2x=21

equation would be 3y-2x=21.

now

ii)=

if slope of 3y-2x=21 and 2x-3y = 0 are same, they are parallel.

2x-3y = 0

2x = 3y

lets suppose x is 9

now

2x=3y

2×9 = 3y

or, 18 = 3y

so, y = 6

one coordinate would be (9,6) now

lets again suppose x is 3

2x=3y

2×3 = 3y

or, 6 = 3y

so, y = 2

another coordinate is (3,2)

now lets find slope

x1=9,y1=6

x2=3,y2=2

slope = (y2-y1)/(x2-x1)

= (2-6)/(3-9)

= -4/-6

= 2/3

Since, slope of 3y-2x=21 and 2x-3y has same slope 2/3, they are parallel.

6 0
3 years ago
What is the unit value of 3 in 432?
vaieri [72.5K]
Its in the tens place so the unit value is 30
6 0
3 years ago
Read 2 more answers
Find the length of arc JL if the radius = 30 cm to the nearest hundredth.
erma4kov [3.2K]

Answer:

4.13

Step-by-step explanation:

5 0
3 years ago
Rearrange the formula A = <br> Θr2<br> 2<br> for Θ.
Lina20 [59]

Answer:

\theta=\frac{2A}{r^2}

Step-by-step explanation:

Given : The formula A=\frac{\theta r^2}{2}

We have to rearrange the given formula for \theta

Consider the given formula A=\frac{\theta r^2}{2}

Multiply both side by 2, we have,

2A={\theta r^2

Divide both side by r^2 , we have,

\frac{2A}{r^2}= \frac{\theta r^2}{r^2}

Simplify, we get,

\frac{2A}{r^2}=\theta

Thus, \theta=\frac{2A}{r^2}  

3 0
3 years ago
Read 2 more answers
Samantha saw 60 people.
Tanzania [10]
People like green shirts better‍♀️
3 0
3 years ago
Other questions:
  • What is the approximate area of the circle shown below?
    9·2 answers
  • Recall, <img src="https://tex.z-dn.net/?f=%20%5Cpi%20" id="TexFormula1" title=" \pi " alt=" \pi " align="absmiddle" class="latex
    5·2 answers
  • I'm super confused. Can anybody answer while writing the steps?
    8·1 answer
  • 3(n - 1) + 2n, when n = 5
    8·2 answers
  • In a raffle, 200 tickets are sold.
    13·2 answers
  • HELP!<br> . . . . . . . . . .
    8·1 answer
  • 5m - 4z + 8m + 3 – 2z
    14·1 answer
  • Help! please don't get it wrong
    7·1 answer
  • HELP ME NOW!!!!!!!!!! (ALGEBRA)
    11·2 answers
  • Select the symbol = (equal to) or ≠ (not equal to) to make the expression true. <br> {0} ? { }
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!