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salantis [7]
3 years ago
7

Help with rational equations

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
7 0
Change all the terms so that they have a common denominator
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In a class, 60% of the students are girls. There are 18 girls in the class.
N76 [4]

Answer:

The answer is 30

Step-by-step explanation:

If you were to do 50% of 30, it would be 15 students that are girls. There's 18 students that are girls though, so the extra 10% would make 18 students in the class girls. The remaining 40% would be 12 boys. So basically you're taking 10% from one side and putting it in the other because 50% of 30 is 15 (well this is at least how I would do it, I don't know how others would do it though)

5 0
2 years ago
What does x equal in 3(x-2)=-3
Maru [420]

Answer:

Step-by-step explanation:

3(x-2)= -3

Divide both sides by 3

x-2 = -1

add 2 to both sides

x - 2 +2 = -1 + 2

x = 1

6 0
2 years ago
Read 2 more answers
Help, will give brainliest :)
Alenkasestr [34]

Answer:

is c=b

Step-by-step explanation:

5 0
2 years ago
In △ABC, AB=9.2 ft, BC=11.9 ft, and m∠B=27°.
Rashid [163]
Area of triangle = 1/2 ab sin c
Area of triangle = 1/2 (9.2)(11.9) sin (27)
Area of triangle = 24.85 ft²

-----------------------------------------------------------------------
Answer: Area - 24.85 ft²
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3 0
3 years ago
4 times as much as 3 is blank
NeX [460]

Answer:

12

Step-by-step explanation:

4 times 3 is 12.

4+4+4=12

5 0
2 years ago
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