Answer:
Number of en at the lecture = 18
Step-by-step explanation:
Let the men at lecture be 2x
And women at lecture be 5x.
Remember ratio of men and women is 2 to 5.
Total number of people at the lecture = 63
i.e 2x + 5x = 63
or 7x = 63
or x = 63 /7
or x =9
Hence , Men at the lecture = 2x = 2*9 = 18
And women at the lecture = 5x = 5*9 = 45
Answer:
40 :)
Step-by-step explanation:
2(6y − 3) = 20 + 6y
Use the distributive property, which states a(b - c) = ab - ac
We should get:
2*6y - 2*3 = 20 + 6y
Which can be simplified to:
12y - 6 = 20 + 6y
That means the mistake was in step 2. The student didn't multiply the numbers and instead added the numbers.
Your answer is: <span>Step 2: 12y-6=20+6y</span>
Answer: I THINK IT IS:
19.25
Step-by-step explanation:
IT IS:
5h-1/4+4.5=5h=17/4
h=3=h=3
Answer:
x = 7
Step-by-step explanation:
The 2 angles are adjacent and sum to 180° , that is
11x + 8 + 12x + 11 = 180
23x + 19 = 180 ( subtract 19 from both sides )
23x = 161 ( divide both sides by 23 )
x = 7