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3 years ago

A zoo has 15 toucans and 60 parrots , what is the ratio of the number of parrots at the zoo

Mathematics

1 answer:

Fiesta28 [93]3 years ago

4 0

Answer: if you mean what is the ratio of parrots to all of the animals that would be 60:75

Step-by-step explanation:

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I need help with this question

nata0808 [166]

I don't know if you've learnt this, but there's something called the KFC rule (you use it when dividing fractions), so k basically stands for keep (so you keep the first fraction), f stands for flip (so you flip the second fraction) and c stand for change (you change the division sign to a multiplication sign)

So you get

5/20*11/5

55/100

which is 11/20

so, an answer of 11/20 would make Quintin correct

5 0

3 years ago

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find the value of x of given figure and solve this question step by step plzz help question number D

Alinara [238K]

Answer:

x=15 cm

Step-by-step explanation:

The two triangles in the diagram are:

ABC and BDC

First we have to find the third side (hypotenuse) of BDC so that we can use it to find the value of x.

Hypotenuse is the largest side of a triangle which is usually in front of the right angle.

So in BDC

$Base = BD =10cm\\Hypotenuse = BC = ?\\Perpendicular = CD = 2\sqrt{11}cm$

Applying Pythagoras theorem:

$(Hypotenuse)^2 = (Base)^2 + (Perpendicular)^2\\BC^2 = BD^2 + CD^2\\BC^2 = (10)^2 + (2\sqrt{11})^2\\BC^2 = 100+(2^2 * 11)\\BC^2 = 100+(4*11)\\BC^2 = 100+44\\BC^2 = 144\\\sqrt{BC^2} = \sqrt{144}\\BC = 12cm$

Solving for triangle ABC

$Base = BC = 12 cm\\Perpendicular = AB = 9 cm\\Hypotenuse = AC = x\\$

Applying Pythagoras theorem

$AC^2 = BC^2+AB^2\\x^2 = (12)^2 + (9)^2\\x^2 = 144+81\\x^2 = 225\\\sqrt{x^2} = \sqrt{225}\\x = 15cm$

Hence,

x=15 cm

8 0

2 years ago

Express the following in scientific notation: 1010.10

sveticcg [70]

Answer:

1.01010 x 10³. Might vary if it asks for specific significant figures.

8 0

3 years ago

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The perimeter of a right-angled triangle is 72 cm.

Verizon [17]

Answer:

the sides of the triangle are 4 cm , 8 cm , 20 cm

6 0

2 years ago

Evaluate the expression 2(8-4)^2 - 10 divided by 2 A) 11 B)26 C)56 D)59

const2013 [10]

The answer is A. 11.

$\frac{2(8-4) ^{2} -10}{2}$
$\frac{2(4) ^{2} -10}{2}$
$\frac{2(16)-10}{2}$
$\frac{32-10}{2}$
$\frac{22}{2}$
11

I hope this was helpful.

7 0

2 years ago

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