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4 years ago

3/9=21/k proportion

1 answer:

7 0

$\frac{3}{9} = \frac{21}{k}\\\\\frac{1}{3}= \frac{21}{k}\\\\\sf Cross~multiply\\\\1(k) = 21(3)\\\\k = 21(3)\\\\\boxed{k = 63}$

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3 years ago

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3 years ago

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bija089 [108]

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4 years ago

Help please<br> This question is stressing me out

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Answer:

Maximum: C= 6(5) + 2y or <u>C= 30 + 2y</u>

Step-by-step explanation:

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3 years ago

Write a function rule that relates r and t.

Svetlanka [38]

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Step-by-step explanation:

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$-1=m(0)+n\\n=-1$

For r=-2 and t=0

$0=m(-2)-1\\m(-2)=1\\m=-\frac{1}{2}$

Them $t=-\frac{1}{2}r- 1$

???? The output for 6 is 1????

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4 years ago