27.5% of x=11 x is the number of people 27.5%=.275 x=11/.275=40 people in the survey participated
3.8 is the answer you already figured it out
Each interior angle = 540/5= 108
Answer:
inverse relation of x is f⁻(X) = (x+15)/-6
Step-by-step explanation:
Answer: <u><em>The first number is 8</em></u>
Step-by-step explanation: Let the three No. s be x, y and z respectively
given = x+ y+ z= 72
y=7x
z=7x-18
∴As we know x+ y+ z=72
i.e. x+7x+7x-18=72
15x=72+18=90
15x=90
x=90/15
∴x=8
∴y=7x
7×8=56
∴z=7x-18
56-18=38
∴<u><em>The first no. is x=8</em></u>
<u><em>The second no. is y=7x = 56</em></u>
<u><em>The third no. is z=7x-18 = 38</em></u>