MATHEMATICS HIGH SCHOOL

Which are equivalent expressions? Check all that are true. 12x + 24y = 12(x + 2y) 12x − 24y = 12(x − 2y) 12x − 24y = 12(x ÷ 2y) 12x ÷ 24y = 12(x ÷ 2y) 12x · 24y = 12(x · 2y)

Answers

Answer 1
Answer:

Answer:

Step-by-step explanation:

12x + 24y = 12(x + 2y)

12x - 24y = 12(x - 2y)

12x/24y = 12(x/2y)

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Rewrite the radical expression as an expression with a rational exponent. the seventh root of x to the third power

Answers

Answer:I think it’s 7x^3

Step-by-step explanation:

1/2 x n = 1/3 what does n =

Answers

you do 1/3 / 1/2
You do Keep, Change, Flip
so...
1/3 /1/2= 1/2*3/1= 3/2 and that is 1 1/2
n=1 1/2

Options are: f(x) = 2x - 1 , f(x) = 2x - 7 , f(x) = x - 6 , f(x) = 1 - x , None of the choices are correct.

Answers

Answer:

f(x) = 2x - 7

Step-by-step explanation:

Plug in the numbers on the right  and see what answer is right

f(x) = 2x(1) - 7=-5

f(x) = 2x(2) - 7=-3

f(x) = 2x(3) - 7=-1

f(x) = 2x(4) - 7=1

Does the equation y=x/2
represent a proportional relationship?

Answers

Answer:

Yes, y=x/2 is a proportional relationship.

Step-by-step explanation:

As x increases, y increases too.

Answer:

Yes

Step-by-step explanation:

y=.5x

What is 3/4ths hours equal to?

Answers

45 minutes. Hope this helps!

anna bakes 12 blueberry muffins, 20 bran muffins, and 8 apple muffins. what percent of the muffins are blueberry?

Answers

Answer:

\%_B_b=(3)/(10) =0.3=30\%

Step-by-step explanation:

When we talk about percentages, we refer to that amount, which, proportionally, refers to a part of the total. In this sense, the total amount of muffins would equal 100%. And we need to find what is the percentage of the amount of blueberry muffins, so:

Let:

Bb=Amount\hspace{3}of\hspace{3}blueberry\hspace{3}muffins\nB=Amount\hspace{3}of\hspace{3}bran\hspace{3}muffins\nA=Amount\hspace{3}of\hspace{3}apple\hspace{3}muffins\n\%_T=Total\hspace{3}percentage=100\%\n\%_B_b=Percentage\hspace{3} of \hspace{3}blueberry\hspace{3} muffins

T=Total\hspace{3}amount\hspace{3}of\hspace{3}muffins

Using  cross-multiplication we can find the what percent of the muffins are blueberry:

(\%_T)/(\%_B_b)= (Bb+B+A)/(Bb) \n\n(100\%)/(\%_B_b) =(12+20+8)/(12)

Solving for \%_B_b

\%_B_b=(12*100)/(12+20+8)=(1200)/(40)=30\%
30%. You want to add up all the muffins (which is 40) and make that your denominator. then as the numerator you make it as many blueberry muffins Anna has. (which is 12) you divide 12÷40×100. and that gives you a percent of 30.
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