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vampirchik [111]
3 years ago
11

What is the sum of x + 9?

Mathematics
1 answer:
vovikov84 [41]3 years ago
5 0
So 30/48=15/(x+9)
this could be easily solved by recognizing the proportion (the other way is usiing full  algebra and doing multiply both sides by 48(x+9) and then divide both sides by 30 then subtract 9)
30 is 2 times of 15
therefor 48 is 2 times of (x+9)
48=2 times (x+9)
divide both sides by 2
24=x+9
subtract 9
15=x

x=15

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Answer:

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Step-by-step explanation:

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3 years ago
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4 divided by 2/9? If you could, please also explain.
shtirl [24]
You do 4/1 divided by 2/9

4 2
_ divided by _

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May I get some help? Thank you!​
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7. In name the bisected angles 1 and 2. If is 4x  3y, can be determined in terms of x and y? If so, state in terms of x+ y expr
Ugo [173]

Answer:since there is no diagram i will answer to the best of my ability.

Step-by-step explanation:

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8 0
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Yuliya22 [10]
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For his trip on the way there:
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use substitution to solve
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