200 x 5 = 1000
1210 x 3 = 3630
3630 + 1000 = 4630
She bought 5 coach tickets and 3 first class.
Answer:
105 girls
Step-by-step explanation:
the ratio is 5:3 equal to 168. You need to multiply the ratio with 21 to make it equal
Answer:
A) 0.26
B) 0.42
Step-by-step explanation:
No. of cars which needed both:
92 + 136 - (200 - 24)
52
P(both) = 52/200 = 0.26
No. of cars that need an alternator, but not new brakes:
136 - 52
84
P = 84/200 = 0.42
Answer:
c=f(x)−ax^2−bx
Step-by-step explanation:
