Mathematics: There are 30 dogs, 40 cats, 45 turtles, and 20 birds in a park. What is the ratio of the total number of cats and dogs to the number of turtles?

There are 30 dogs, 40 cats, 45 turtles, and 20 birds

Ответ:

smhrosepetals

06.02.2022

Mathematics

70:45

Step-by-step explanation:

I don't really know how to explain this sorry

Hopefully this helps though!

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Ответ:

emiliemon5114

13.03.2023

Mathematics

1)
$F(x)=x^2+3x-10 \\
0=x^2+3x-10 \\
0=x^2-2x+5x-10 \\
0=x(x-2)+5(x-2) \\
0=(x+5)(x-2) \\
x+5=0 \ \lor \ x-2=0 \\
x=-5 \ \lor \ x=2 \\ \\
\hbox{the function has two zeroes: x=-5 and x=2}$

2)
$F(x)=-x^2+8x+9 \\
0=-x^2+8x+9 \\
0=-x^2-x+9x+9 \\
0=-x(x+1)+9(x+1) \\
0=(-x+9)(x+1) \\
-x+9=0 \ \lor \ x+1=0 \\
x=9 \ \lor \ x=-1 \\ \\
\hbox{the function has two zeroes: x=-1 and x=9}$

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There are 30 dogs, 40 cats, 45 turtles, and 20 birds in a park. What is the ratio of the total number of cats and dogs to the number of turtles?

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