10)

11)

12)

13) (your answer is incorrect)

14) (your answer is incorrect)

15)

16)
-expression to represent this situation

Answer: In 1 group 57 students
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P.S. Hello from Russia :^)
Answer:11
Step-by-step explanation:
Boys : girls=7:1
Sum of ratio=7+1=8
Let them number of girls be y
Then they number of boys=y+66
Total number of pupils=y+y+66
Total number of pupils=2y+66
Number of girls=(girls ratio)/(sum of ratio) x (total number of pupils)
y=1/8 x (2y+66)
Cross multiply
y x 8=2y + 66
8y=2y + 66
Collect like terms
8y-2y=66
6y=66
Divide both sides by 6
6y/6=66/6
y=11
The number of girls is 11
Answer:
For example, a multiple of 2 is 2, 4, 6, 8, etc...
So if your question is find three multiples of 36, it would 36, 74 and 110.
Hoped this helped, have a nice day!
Brainlyest plz?
I just added the two numbers and got the number 100.88
Answer:
A) upper point is (-5,5) the lower point is (1,-2)
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B) distance is 8
Step-by-step explanation: