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alisha [4.7K]
3 years ago
12

The ratio of boys to girls in a class is 3 to 4. If the class has 21 students, how many of them are girls?

Mathematics
1 answer:
pentagon [3]3 years ago
4 0

Answer:

D. 9

Step-by-step explanation:

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Hannah took p minuets to jog around a park. Sofia took 12 minuets longer to jog around the park. If sofia took t minutes to jog
Sladkaya [172]

Answer:

t = p + 12

Independent variable: p

Dependent variable: t

Step-by-step explanation:

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7: Triangle Similarity (Help, It would mean so much please & Thank you)
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Answer: Question #1 The height of the tree is about 18 feet.

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4 0
3 years ago
Factor 64v^3 + 192v^2 -56v - 168​
Kaylis [27]

Hello from MrBillDoesMath!

Answer:

8(v+3) ( -1/2 (sqrt(14) - 4 v) (4 v + sqrt(14)) )


Discussion:

Given

64v^3 + 192v^2 - 56 v - 168      

Factor 64v^2 from the first two terms. Factor 56 from the last two terms:

64v^2(v+3) - 56(v  + 3)     => factor (v+3) from both terms

(v+3) (64v^2 - 56)             => factor 8 from both terms in the right ()

8(v+3)(8v^2-7)                   => factor 8y^2-7

8(v+3) ( -1/2 (sqrt(14) - 4 v) (4 v + sqrt(14)) )



Thank you,

MrB

4 0
3 years ago
HELP ASAP!!<br><br>What is the length of PQ?<br><br>12 km<br><br>16 km<br><br>18 km<br><br>20 km​
natima [27]

20 km is the correct answer

4 0
3 years ago
Read 2 more answers
Please help asap!! 35 points!!!!!
shutvik [7]
I don't think it is linear b/c i don't think you can plug in the numbers and get it to work. This may not be right though b/c I did this in my head.
5 0
3 years ago
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