2 years ago

I would like to know how to solve this please.

Mathematics

1 answer:

QveST [7]2 years ago

5 0

Here’s the answer:
(It didnt let me send the response so I took a screenshot)

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There are 3 times as many dogs as cats.

vazorg [7]

Answer:

there are 12 dogs.

Step-by-step explanation:

d= dogs now plug in the 4 into your equation.

c= cats d=3(4)

d+c=16 d=12

3c+c=16

4c=16 SO THEREFORE THERE ARE 12 DOGS :)

c=4

7 0

2 years ago

Chloe has enough sand to fill a sandbox with an area of 36 square units. She wants the outer edges of the sandbox to use as litt

sergiy2304 [10]

Answer:

The dimensions of the box is 6 × 6 units.

Step-by-step explanation:

Chloe fill a sand box whose area is 36 square units.

Let length be x units and width be y units.

Area of box = 36

$xy=36\\y=\dfrac{36}{x}\ \ \ ...(i)$

Perimeter of box, $P=2(x+y)$

$P=2(x+\dfrac{36}{x})\ \ \ \ \ \ \ \ [\text{ From }(i)]$

Differentiate w.r to x

$\dfrac{dP}{dx}=2(1-\dfrac{36}{x^2})$

For critical point, $\dfrac{dP}{dx}=0$

$\therefore 2(1-\dfrac{36}{x^2})=0$

$\Rightarrow x=\pm6$

x can't be negative.

$\dfrac{d^2P}{dx^2}=\dfrac{144}{x^3}\\\dfrac{d^2P}{dx^2}|_{x=6}=\dfrac{144}{216}>0(\text{min})$

$P_{min}=24$ units

Hence, Length = 6 units and width = 6 units

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2 years ago

-3r+5r<br> What is the answerrr i need helpp :((((

adelina 88 [10]

-3r+5r=2r
This is the right answer

4 0

3 years ago

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What is A∪ϕ and A∩ϕ for a set A?

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Answer:

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2 years ago

The ratio of the measurement of an angle to its supplement is 3:5. Find the angle and its supplement.

notsponge [240]

67.5
112.5

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3 years ago