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3 years ago

The number of ducks in a pond was 345. If 33 1/3% of the ducks flew away. how many were left

Mathematics

2 answers:

ra1l [238]3 years ago

7 0

Answer: 230 ducks were left.

Step-by-step explanation:

Setler [38]3 years ago

5 0

Answer:

31 ducks

Step-by-step explanation:

345 ÷ 33 1/3% = ducks left.

345 ÷ 33 1/3% = approximately 31

So once solved, you can conclude that there are 31 ducks left in the pond.

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How many time larger is 5000 to 5

disa [49]

Answer:

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Step-by-step explanation:

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A 20 ft. ladder is used against a 15 ft. wall. What is the measure of the angle made by the ladder and the ground (nearest whole

Brrunno [24]

Step-by-step explanation:

Given that,

The length of a ladder, H = 20 feet

The height of the wall, h = 15 ft

We know that,

$\sin\theta=\dfrac{h}{H}$

h is perpendicular and H is hypotenuse

So,

$\sin\theta=\dfrac{15}{20}\\\\\theta=\sin^{-1}(\dfrac{15}{20})\\\\\theta=48.59^{\circ}$

Now using Pythagoras theoerm,

$b=\sqrt{H^2-h^2}\\\\b=\sqrt{20^2-15^2}\\\\b=13.2\ ft$

Hence, the angle made by the ladder and the ground is 48.59° and the ladder is 13.2 feet from the wall on the ground.

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3 years ago

Can someone please please answer this and explain it? my math teacher didn’t :( will give brainliest points for explanation!!! (

AnnZ [28]

Answer:

QR = 1

Step-by-step explanation:

PR = PQ + QR

PR = x + 19

PQ = 9

So now put what you know in the equation above.

PR = 9 + 2x + 19

PR also equals x + 19

x + 19 = 9 + 2x + 19

x + 19 = 2x + 28

19 - 28 + x = 2x

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-9 = 2x - x

-9 = x

===================

QR = 2x + 19

QR = 2*-9 + 19

QR = -18 + 19

QR = 1

This really is kind of a nasty question. You don't expect to get a minus number of x.

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

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Hence thirty two dollars , is the solution

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2 years ago