Answer:
60%
Step-by-step explanation:
Number of people ages 26 - 35 prefer Ad A = 12
Number of people ages 26 - 35 prefer Ad B = 8
Total people ages 26 - 35 = 12 + 8
= 20
Percent of people ages 26 - 35 prefer Ad A = Number of people ages 26 - 35 prefer Ad A / Total people ages 26 - 35 × 100
= 12/20 × 100
= 0.6 × 100
= 60%
Percent of people ages 26 - 35 prefer Ad A = 60%
Answer: (x-5)/(x+1) and x cannot equal -1 because the denominator can't be zero.
Step-by-step explanation:
Factor the numerator:
(x+9)(x-5)
Factor the denominator:
(x+1)(x+9)
So you have
(x+9)(x-5)/(x+1)(x+9); see that you can cross out the (x+9) in both the numerator and denominator?
You're left with (x-5)/(x+1)
The only number that is restricted is -1, because that would make the denominator zero, which is a no no!!
Answer:
desculpa mas eu não sei a resposta mais eu vou ver se posso te ajudar taaa
Answer:
∠ ADC = 100° , ∠ DCB = 39°
Step-by-step explanation:
(3y + 7) and ( 3y - 13) are angles on a straight line and sum to 180° , so
3y + 7 + 3y - 13 = 180
6y - 6 = 180 ( add 6 to both sides )
6y = 186 ( divide both sides by 6 )
y = 31
Then
∠ ADC = 3y + 7 = 3(31) + 7 = 93 + 7 = 100°
and
∠ BDC = 3y - 13 = 3(31) - 13 = 93 - 13 = 80°
∠ BDC = 180° - (61 + 80)° ← angle sum in Δ BCD = 180°
= 180° - 141°
= 39°
32 students.
3 do none, so we can leave them out.
29 students.
18 + 16 = 34
34 - 29 = 5 students doing both subjects.