23) 17/30
41) 3/10 because 3/10 + 7/10 = 10/10 or 1.
63/9 + 40 - 35/7 =
7 + 40 - 5 =
47 - 5 =
42 <==
Answer:
12
Step-by-step explanation:
The given ratio is ...
tulips : violets = 5 : 6 = 10 : 12 . . . . . . . .multiply by 2
This tells us that maintaining the ratio will require 12 violets to be added for an addition of 10 tulips.
Answer:
(3, 8) and (9, 24) lie on the same line through the origin.
because (9, 24) is the result of dilatation of (3, 8) with scale factor 3.
(6, 21) is not the result, because 21 ≠ 2×8, even 6 = 2×3
Answer:
649 trains
Step-by-step explanation:
If there are 30 seats per carriage, and there is 18 carriages per train.
You multiple 30 and 18 to get how many seats there are in a train.
30*18 is 540 seats.
To figure out how many trains would be needed to seat 350,000 passenger, you have to divide 350,000 with 540 to get how many trains would be needed.
350,000/540 is 648.1
Since the answer is 648.1 and you can't chop a train into 10 pieces, you would need 649 trains to seat 350, 000 passengers.
