Answer:
4/5 girls have brown hair.
I think there are 20 students.
Step-by-step explanation:
You need to have the deniminator at the first number where the bases are the same and that would be 20. 16/20 girls have brown hair.
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Answer:
d.all of the above
Step-by-step explanation:
System of equations with no solution means that lines are parallel to each other,don have any common point.
Note that two lines are parallel if their slopes are equal and they have different y-intercepts.
So all the alternatives are true.
Answer:
x = - 1/3 and x = 4
x = 1/3 and x = - 4
x = 2/3 and x = - 2
x = - 2/3 and x = 2
Step-by-step explanation:
A.) (3x + 1) and (x-4)
3x + 1 = 0 and x-4 = 0
3x = - 1 and x = 4
x = - 1/3 and x = 4
B) A.) (3x - 1) and (x + 4)
3x - 1 = 0 and x + 4 = 0
3x = 1 and x = - 4
x = 1/3 and x = - 4
C) (3x – 2) and (x + 2)
3x – 2 = 0 and x + 2 = 0
3x = 2 and x = - 2
x = 2/3 and x = - 2
D) (3x + 2) and (x - 2)
3x + 2 = 0 and x - 2 = 0
3x = - 2 and x = 2
x = - 2/3 and x = 2
Answer:
<u>PQ = 54</u>
Step-by-step explanation:
The rest of the question is the attached figure.
As shown:
triangle RPQ is similar to triangle RTS.
So, the corresponding sides are in proportion.
From the figure:
TS = 36 , RP = 42 AND RT = 28
∴
∴ PQ = 36 * 42/28 = 54
<u>So, the distance between P and Q = 54</u>