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3 years ago

Ratio of a to c Please answer

Mathematics

2 answers:

Dahasolnce [82]3 years ago

5 0

Answer:

Step-by-step explanation:

a/b=4/5 b/c=2/9

Ration of a to c is

a/c=4/9

kolezko [41]3 years ago

5 0

Answer:

$\frac{8}{45}$

Step-by-step explanation:

$\frac{a}{c}$ = $\frac{a}{b}$ × $\frac{b}{c}$

= $\frac{4}{5}$ × $\frac{2}{9}$ = $\frac{8}{45}$

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dezoksy [38]

Step 1: -12x - 2y ≥ -42
Step 2: -2y ≥ -12 - 42
Step 3: y ≤ -6x + 21
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D) y ≤ -6x + 21

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4 years ago

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Which of the following is a correct solution to the inequality 3x - 12 > 15?

pishuonlain [190]

Solve the inequality just like you would solve an equation
3x - 12 > 15
add 12 to both sides
3x > 27
divide both sides by 3
x > 9
Or read as "the solution to 3x - 12 > 15 is x is greater than 9"

Hope this helps :)

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3 years ago

Which shape is both a rectangle and a square? please help i’ll rate you brainliest

erastova [34]

Answer:

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Step-by-step explanation:

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3 years ago

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How the heck do I do this? And what’s the answer?

stira [4]

Answer:

Option A

Step-by-step explanation:

We need to find two expressions that, when simplified, give the same results.

1) First, simplify the expression stated in the question. Multiply each of the terms in the parentheses by the number that is next to them. This would mean you have to multiply both 9x and -6 by $\frac{2}{3}$ . You also have to multiply $\frac{1}{2}x$ and $-\frac{1}{2}$ by 4. Then, simplify.

$\frac{2}{3}(9x-6) + 4 (\frac{1}{2} x - \frac{1}{2})\\\frac{18}{3}x- \frac{12}{3} + \frac{4}{2}x -\frac{4}{2} \\6x - 4 + 2x - 2$

2) Now, combine the like terms.

$6x - 4 + 2x - 2$

$8x - 6$

So, we need to find which of the expressions listed equal 8x - 6.

3) Let's try option A. Do the same as before. Multiply each of the terms in the parentheses by the number that is next to them. So, multiply 4x and -12 by $\frac{3}{4}$ . Also, multiply 30x and 18 by $\frac{1}{6}$ . Then, combine like terms and simplify.