Alberto puts 3 kinds of fish in his fish tank: zebra danios, fancy guppies, and cat fish. Half of Alberto's fish are zebra danios. He has 2 times as many catfish as he has fancy guppies.

Answers

Answer 1

Answer: Missing info:
Alberto's friend Jackson says 1/3 of Alberto's fish are catfish. Is Jackson correct?

Given:
zebra danios
catfish
fancy guppies

zebra danios is 1/2 of the total number of fish
2 times as many catfish as fancy guppies

x = guppies
2x = catfish

x + 2x = 1/2 of the fish population
3x = 1/2 of the fish population
3x * 2 = 6x
x = 1/6 number of fancy guppies

catfish:
2x = 2(1/6) = 2/6 = 1/3 catfish.

Jackson is correct. Catfish is 1/3 of the total fish population.

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I need this explained

Answers

$\text{Hey there!}$

$\text7x}^2\text{- 32x - 60}$

$\text{The answer is: (7x + 10)(x - 6)}$

$\text{Because if you follow the step to the answer (first you have to distribute}$ $\text{then combine the like terms after distributing) after all of that you SHOULD}$ $\text{get the equation back!}$

$\text{Distribute}\downarrow\n\n\text{7x(x)=7x}^2\n \text{7(-6x)= -42}\n\text{10(x)= 10x}\n\text{10(-6)= -60}$

$\text{Combine your like terms (terms that has the almost the same thing)}\downarrow$

$\text{-42x + 10x = -32x}$

$\text{The other terms stays the same because they DON'T have like terms}$

$\text{Original problem: 7x}^2\text{- 32x -60}$

$\boxed{\boxed{\bf{Answer: (7x+10(x -6))}}}\checkmark$

$\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{LoveYourselfFirst:)}$

Please show work thank you

Answers

∠D = 90°
∠E = x
∠F = 2x - 12

Angles in a triangle = 180°
  90 + x + 2x - 12 = 180
  78 + 3x = 180
-78 -78
3x = 102

   $(3x)/(3) = (102)/(3)$
3 and 3 cancels out

34 = x

∠E = 34°

∠F = 2x -12
= 2 × 34 - 12
= 56°

two students in the class who do not wear glasses now wear glasses what is the new ratio of the number of students who wear glasses to the number of students who do not wear glasses