8.
100/ (27-7)
100/(20)
5
9. 4/? =20/45
cross multiply and divide
4*45=180
180/20=
9
Answer:
Step-by-step explanation:
In a class of 30 students, the teacher had surveyed them and 24 of the students and said that they were going to study in his art class for the next year and the rest 6 students are'nt studying in art class
Only 4 because result is (x-4)(x-4) that means (x-4)^2=0
So
X-4=0
X=4
More algebra pretending to be geometry. These questions should be banished from the planet.
A transversal across parallel lines generates the usual congruent and supplementary angles; here our pair are supplementary, adding to 180 degrees. Geometry done.
(2x + 12.8) + 117.6 = 180
2x = 180 - (12.8 + 117.6) = 49.6
x = 49.6/2 = 24.8
Answer: 24.8
Answer:
p = 1 ; q = 10,000
Step-by-step explanation:
Number of distinct colored balls = 10
Number of balls picked with replacement = 4
Probability = (number of required outcome / number of total possible outcomes)
Distinct picks :
P(1st) = 1 /10
P(2nd) = 1/10
P(3rd) = 1/10
P(4th) = 1/10
Expected Numbe of distinct color:
P(1st) * P(2nd) * P(3rd) * P(4th)
1/10 * 1/10 * 1/10 * 1/10
= 1/10000
p/q = 1/ 10000
p = 1 ; q = 10,000