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
Nookie1986 [14]
3 years ago
11

A scale drawing of a lake has a scale of 1 cm to 80 m. If the actual width of the lake is 1,000 m, what is the width of the lake

on the scale drawing?
Mathematics
1 answer:
marusya05 [52]3 years ago
6 0

The drawing of the lake has the scale of 1 centimeter to 80 meters.

Now, the actual width of the scale is of 1000 meters.

To find out the width of the lake on the drawing we need to convert the actual length as per the scale drawing.

Since we know that in the given scale drawing we have,

1 centimeter = 80 meters

Or we can say that

80 meters = 1 centimeter

1 meter = \frac{1}{80} meter

Now, 1000 meters should be equivalent to

\frac{1}{80} \times 1000=12.5 centimeters.

Therefore, the width of the lake on the scale drawing is 12.5 centimeters.

You might be interested in
Jordan makes two batches of cookies each week for her book club. Each batch of cookies needs 1 2/3 cups of flour. If she starts
mel-nik [20]

Answer:

സ്സ്‌സെക്സെക്സ് sexse

3 0
3 years ago
Suppose 250 randomly selected people are surveyed to determine if they own a tablet. Of the 250 surveyed, 98 reported owning a t
SashulF [63]

Answer:

The true proportion for the population would be between 0.386 and 0,398 (0.392±0.06) in 95% confidence level.

Step-by-step explanation:

Confidence interval for true population proportion can be computed as p±ME where

  • p is the sample proportion ( \frac{98}{250}=0.392)
  • ME is the margin of Error from the mean

and margin of error (ME) can be found using the formula

ME=\frac{z*\sqrt{p*(1-p)}}{\sqrt{N} } where

  • z is the corresponding statistic in 95% confidence level (1.96)
  • p is the sample proportion ( \frac{98}{250}=0.392)
  • N is the sample size (250)

Using the numbers

ME=\frac{1.96*\sqrt{0.392*0.608}}{\sqrt{250} } ≈ 0.06

Then the true proportion for the population would be p±ME = 0.392±0.06 in 95% confidence level.

6 0
3 years ago
Ayden has exactly $1,725.50 to spend on a 7 - day vacation. If Ayden spends all of his money during the 7 - day span, what will
Fantom [35]
He would spend 246.5 each day because you would divide 1,725.50 by 7 and get 246.5
5 0
3 years ago
Read 2 more answers
Write the equation of a line that is parallel to y=9, that passes through the point (3,-8)
lisov135 [29]

Answer:

y = -8

Step-by-step explanation:

If the equation is parallel to y = 9, the you already know that the equation must be y = some value. It passes through the point (3,-8). Just put that y value into the equation to get y = -8

4 0
3 years ago
The variance of the scores on a skill evaluation test is 143,641 with a mean of 1517 points. If 343 tests are sampled, what is t
Vlad1618 [11]

Answer:

The probability that the mean of the sample would differ from the population mean by less than 36 points=0.9216

Step-by-step explanation:

We are given that

The variance of the scores on a skill evaluation test=143,641

Mean=1517 points

n=343

We have to find the probability that the mean of the sample would differ from the population mean by less than 36 points.

Standard deviation,\sigma=\sqrt{143641}

P(|x-\mu|

=P(|Z|

=P(|Z|

=0.9216

Hence,  the probability that the mean of the sample would differ from the population mean by less than 36 points=0.9216

5 0
3 years ago
Other questions:
  • Can someone help me please ?
    15·1 answer
  • Y-3=1/2x+1 in y=ax+b form
    6·1 answer
  • WHO =EVER ANSWERS THIS FIRST WILL BE MARKED BRAINLIEST!!!!!!!!!!!!!!!!!!
    9·1 answer
  • Help look at my photo
    11·1 answer
  • I don't really understand this please help!
    15·1 answer
  • Ugentttt <br> Identify each ratio as proportional or not to ratio 3:7
    12·1 answer
  • What is 32,879 rounded to the nearest thousand
    9·2 answers
  • (Worth 20 Points) While shopping at a mall, Jonathan saw two toys he wanted to buy. The toys originally cost 15.95 and 11.65, th
    13·1 answer
  • If a plant grew from 6 inches, by 10 inches by, what percent did it increase​
    13·1 answer
  • May I please help help with this. I tried many times but still couldn’t get the right answers I’m also confused as to how I shou
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!