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Sergeu [11.5K]
3 years ago
9

Find x if f(x)=-21: f(x)=2x+9​

Mathematics
1 answer:
bazaltina [42]3 years ago
6 0

Answer:

The answer is -33

Step-by-step explanation:

f(x) = 2x + 9; f(x) = -21

= 2(-21) + 9

= -42 + 9

f(x) = - 33

Thus, The answer is -33

<u>-</u><u>TheUnknownScientist</u><u> 72</u>

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Answer:

<u>So, the way a ratio works is </u><u>"for every 1 of this, we have 4 of this"</u><u> for example. (the ratio I just described would be 1:4.) </u>

<u />

I believe I've seen this question before. If the ratio of dolls to teddy bears is 9:3 then for every 9 dolls you have 3 teddy bears.

So, since we have 240 dolls and a 9:3 ratio to teddy bears, all we have to do is take how many dolls we have (240) and divide it by 3 to see how many teddy bears we have.

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