All categories

3 years ago

it takes 52 minutes for 5 people to paint 5 walks. how many minutes does it take 20 people to paint 20 walks

Mathematics

2 answers:

Viktor [21]3 years ago

7 0

Answer:

52min

Step-by-step explanation:

5 people..............5 walls............52 min

1 people...............5 walls...........52 x 5=260 min

1 people................20 walls.........260 x 4 =1040 min

20 people................20 walls........1040:20=52 min

KonstantinChe [14]3 years ago

6 0

Answer:

116

Step-by-step explanation:

maybe don't try this i could be wrong.

You might be interested in

Order the following decimals from greatest to least (separated by

Feliz [49]

Answer:

0.14, 0.5, 0.71, 0.8, 0.83

7 0

2 years ago

Please Help!

alisha [4.7K]

Diagonal of the parallelogram divides the parallelogram in to two equal areas.

So area of parallelogram = 2(area of triangle)

According to the given diagram,

AB= 8, AD = 5 and BD = 11

So according to the Heron's formula,

Area of triangle = $\sqrt{s(s-a)(s-b)(s-c)}\\\\where,\\ s =\frac{a + b + c }{2}$

and a, b and c are the three sides of the triangle

Area of triangle ABD = $s=\frac{8 + 5 + 11}{2} \\\\s = \frac{24}{2}\\\\s = 12Area of triangle ABD = \sqrt{12(12 - 8) (12 - 5) (12 - 11)}\\\\Area of triangle ABD = \sqrt{12(4) (7) (1)}\\\\Area of triangle ABD = \sqrt{336}\\\\Area of triangle ABD = 18.33$

So, area of parallelogram ABCD = 2(area of triangle ABD)

area of parallelogram ABCD = 2 (18.33)

area of parallelogram ABCD = 36.66

area of parallelogram ABCD = 36.7 sq. units

6 0

3 years ago

Read 2 more answers

A dime and a quarter are placed on one side of a balance scale. A half-dollar is placed on the other side. Which side of the sca

kirill115 [55]

Answer:

It would have to be 25 dimes

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The Diagram shows the net of a square pyramid and its dimensions

Serjik [45]

<u>Answer:</u>

<u>Explanation:</u>

SA = the area of one side of the pyramid times 4 + the area of the base of the pyramid

Area of a triangle = (height × base)/2

Area of a sqaure = lenght²

given:

h = 4 ft | b = 6 ft | l = 6 ft

SA = 4(h×b×1/2) + l²

SA = 4(4×6×1/2) + 6²

SA = 4×12 + 36

SA = 48 + 36

SA = 84 ft²

3 0

3 years ago

A researcher surveyed people as they left a museum, asking whether they visited the gift shop and whether they watched the film

BARSIC [14]

Hey there!

P(y) = 0.46

P(x) = 0.49

P(y') = 0.54

P(x') = 0.51

P(y and x') = 0

x = person that watched the film

y = person that visited the gift shop

P(y and x') / P(x')

0.1 / 0.51 = 0.196

Now convert that into a percentage!

0.196 = 19.6%

Your answer is 19.6%

Hope I helped!

Let me know if you need anything else!

~ Zoe

5 0

3 years ago