Answer:
Malcolm’s maximum speed is 200 km/h and and Ravi’s maximum speeds is 320 km/h.
Step-by-step explanation:
Let x and y are the maximum speeds ( in km / h ) of Malcolm and Ravi respectively,
Then according to the question,


Again according to the question,


Equation (1) + equation (2),
3x = 600
⇒ x =
= 200,
From equation (1),
200 + y = 520
⇒ y = 520 - 200 = 320
Hence, Malcolm’s and Ravi’s maximum speeds are 200 km/h and 320 km/h respectively.
Answer: $
Step-by-step explanation:
Question: $36.60 with the discount of 20%?
Steps:
Discount = Original Price * Discount %100
Discount =
× 
Discount =
× 
You save = $
Final Price = Original Price - Discount
Final Price = 
Final Price = $
~I hope I helped :)~
Answer:
4
Step-by-step explanation:
72-36=36
36÷9=4.........
Answer:

Step-by-step explanation:
You can understand the statement from many perspectives, but in terms of proposition logic it is best to understand it as "negation of a" or " b" in mathematical terms is written like this

You can show that they are logically equivalent because they have the same truth table.