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
LekaFEV [45]
3 years ago
5

Help!! With this question Please

Mathematics
2 answers:
Shalnov [3]3 years ago
7 0

<u>Answer:</u>

250 meters

<u>Step-by-step explanation:</u>

We are given the picture of a reservoir which is made using the scale 1 : 1000.

We are to find the actual length of the lap if one lap along the perimeter of the reservoir is 25 cm.

Using the ratio method:

\frac{1}{25}:\frac{1000}{x}

x=25000 cm

Converting it from centimeter to meter:

\frac{1m}{x}= \frac{100cm}{25000cm}

x=\frac{25000cm}{100cm}

x=250m

Therefore, the actual length of the lap is 250 meters.

Sedbober [7]3 years ago
3 0
<h2>Answer:</h2>

<u>The length is</u><u> 250 meters</u>

<h2>Step-by-step explanation:</h2>

If we look at the left corner of the diagram we see a scale. According to the scale factor of the map

1 cm :1000 cm

The length of the lap on the map is 25 cm

So (25 × 1000) = 25000 cm

Since

1 meter = 100 centimeter

So the actual length of the lap = 25000 ÷ 100 = 250 meters

You might be interested in
How to solve this question ​
yarga [219]

Answer:

BC = 3.6

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

\frac{BC}{DE} = \frac{AC}{AE} , substitute values

\frac{BC}{1.2} = \frac{4.5}{1.5} ( cross- multiply )

1.5 BC = 5.4 ( divide both sides by 1.5 )

BC = 3.6

6 0
3 years ago
checking account a charges a montly service fee of 3 and a per check fee of .02 while checking account b charges a montly servic
Gnoma [55]

Answer:

good morning I was just asking when will I be

3 0
2 years ago
Bacteria vary somewhat in size, but a diameter of 1.5 μ m is not unusual.
Dmitrij [34]

Answer:

a) 1.8 × 10^-12 cm³ or 1.8 × 10^-12 cubic meters

b) 7.1 × 10^-6 mm² or 7.1 × 10^-6 square millimeters

Step-by-step explanation:

a) We are assuming that the shape of the bacteria is a sphere.

Hence, Volume of the Sphere(Bacteria) = 4/3 × π × r³

Diameter = 1.5 μm

Radius = Diameter/2 = 1.5μm/2

= 0.75μm

We are told that the volume should be in cubic centimeters

Converting 0.75μm to centimeters

1 μm = 1 × 10^-4 cm

0.75 μm =

Cross Multiply

= 0.75 μm × 1 × 10^-4 cm/ 1 μm

= 0.000075cm

Volume of the Sphere(Bacteria) = 4/3 × π × r³

= 4/3 × π × (0.000075)³

= 1.767145867 × 10^-12 cm³

Approximately as 2 significant figures = 1.8 × 10^-12 cm³

b) The formula for the Surface area of a Sphere = 4πr²

Diameter = 1.5 μm

Radius = Diameter/2 = 1.5μm/2

= 0.75μm

We are told that the surface area should be in square millimeters

Converting 0.75μm to millimeters

1 μm = 0.001 mm

0.75 μm =

Cross Multiply

= 0.75 μm ×0.001mm/ 1 μm

= 0.00075mm

Surface Area of a Sphere

= 4 × π × r²

= 4 × π × 0.00075²

= 7.06858 ×10^-6 mm²

Approximately to 2 significant figures

= 7.1 × 10^-6 mm²

6 0
3 years ago
If kenedell was born i 2009 feb.17 how old is she in 2040
k0ka [10]

Answer:

Don't subtract exactly or it will be incorrect, you'll have to add the years, and differentiate the leap years

Step-by-step explanation:

30 yrs old

sorry I dont have a shorter method

7 0
3 years ago
More evaluation that I need help on p.s you do not need to explain your work because I just need the answer
makvit [3.9K]

Your answer is C) 1/9

lol I just solved the other answer sorry but people are going to try and take free points so I needed to give an answer to show that someone did something. Hope I helped anyway. You don't need to mark brainliest, but I'd appreciate it if you did.

<h2>-^_^-</h2>
6 0
3 years ago
Other questions:
  • PLEASE HELP ASAP! <br> What is the measure of YB?
    5·1 answer
  • Tell the numbers that are odd and prime 2,14,23,24,25,31,45
    9·2 answers
  • What’s the answer help plz
    7·2 answers
  • A CD player that regularly sells for $79.00 is on sale at a 15% discount.
    10·2 answers
  • Find the number of distinct arrangements of the 9 letters in SEVENTEEN. Two of the same letter are considered identical (not dis
    5·1 answer
  • A square box has a side of 17, what is the volume, area, and perimeter of the box?
    11·2 answers
  • A card is picked wt ​
    10·2 answers
  • The Hiking Club plans to go camping in a State park where the probability of rain on any given day is 2/3. What is the probabili
    10·1 answer
  • If ° (3n-4)2 * = 310 then n= ?
    6·1 answer
  • The ratio of Zoey's money to Andrew's money is 4:5. If Zoey has $28, how much do they have altogether?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!