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
enot [183]
3 years ago
14

An Olympic swimming pool is 50 metres long by 25 metres wide. Rebecca draws a scale diagram of it to a scale of 1 cm to 5 m. How

many centimetres long should her drawing be?Required to answer. Single choice.
(2 Points)
5
10
25
Mathematics
1 answer:
evablogger [386]3 years ago
7 0

Answer:

10

Step-by-step explanation:

A scale drawing is a reduced form in terms of dimensions of an original image / building / object

the scale drawing is usually reduced at a constant dimension

scale of the drawing = original dimensions / dimensions of the scale drawing

Scaled length of the pool = 50 / 5 = 10cm

You might be interested in
A gardener can care for the Green's property in 5 hours. If his helper assists him, they can complete the job in 4 hours. How lo
PilotLPTM [1.2K]

Step-by-step explanation:

Fraction of work done by Gardner in 1 hr = 1 / 5

Fraction of work done by Gardner and helper in 1 hr = 1 / 4

Fraction of work done by helper in 1 hr

= 1 / 4 - 1 / 5

= 1 / 20

<u>Time required by helper to complete work</u> :

= <u>20 hours</u>

6 0
3 years ago
23.
olganol [36]

72 boys.

Step-by-step explanation:

no. of boys (initial) : no. of girls : no. of boys (final)

3 : 2

3 : 2

______________________________________

9 : 6 : 4

9u - 4u = 5u = 30

5u = 30

1u = 30/5 = 8

9u (initial no. of boys) = 8×9

= 72

6 0
2 years ago
The library sells 500 books at its annual used-book
aliya0001 [1]

Answer:

<h3>Children's books</h3>
  • Number  = c
  • Cost of each = $5
  • Total of children's books = 5c
<h3>Adult books</h3>
  • Number  = a
  • Cost of each = $9
  • Total of children's books = 9a
<h3>The equations reflecting the totals are</h3>
  • Books       ⇒  c + a = 500
  • Total cost ⇒  5c + 9a = 3940

4 0
3 years ago
Gloria is digging for fossils at a geological site. She has 120 meters of rope and 4 stakes to mark off a rectangular area. Whic
balu736 [363]
There are a lot of solutions to this problem, so I'm only going to list 10. The only requirement is that the quadrilateral must be a rectangle with a perimeter of 120 meters.
1) 30, 30, 30, 30. I know that this is a square, but it should still be a solution since all squares are rectangles.
2) 50, 50, 10, 10. 
3) 55, 55, 5, 5.
4) 45, 45, 15, 15.
5) 40, 40, 20, 20.
6) 35, 35, 25, 25.
7) 36, 36, 24, 24.
8) 18, 18, 52, 52.
9) 14, 14, 48, 48
10) 6, 6, 54, 54.
7 0
3 years ago
Read 2 more answers
In BCD, H is the centroid. If DE=51 find HE.
jeyben [28]

Answer:

HE=17 units.

Step-by-step explanation:

In a triangle, centroid is the intersecting point of the medians.

Centroid divides each of the medians in ratio 2:1

So,

\frac{DH}{HE}=\frac{2}{1}  \\\\\frac{DH}{HE}+1=\frac{2}{1}+1\\\\ \frac{DH+HE}{HE} =3\\\\\frac{DE}{HE}=3

Put DE=51 units

\frac{51}{HE}=3\\\\HE=\frac{51}{3}

HE=17 units.

5 0
3 years ago
Other questions:
  • To which subset(s) does the negative square root of 25 belong? choose all that apply
    5·2 answers
  • 3 pizzas for $ 16.50 what is the unit rate for one pizza
    14·2 answers
  • Ingedients to make 16 gingerbread men
    5·1 answer
  • I need help emergrncy shots fire shots fire we neeed all back ups
    6·1 answer
  • 87 is 15% of what number​
    7·2 answers
  • a box is filled with black (B), white (W), red (R), green (G), and pink (P) phone cases. A phone is selected at random
    6·2 answers
  • I Need Help!!! PLEASE HELP!!!!!!!!
    15·1 answer
  • This is very easy!!​
    8·2 answers
  • 1.) Find f(4) for f(x) = 3x - 4
    12·1 answer
  • What is 20% of 90???
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!