Answer:
W = 72
Step by step explanation:
White = W
Red = R
W + R = 90
Write an equation
W = 5R - 6
Substitute
5R - 6 = 90
Add 6 to both sides of the equation
5R = 90
Simplify
90 ÷ 5 = 18
R = 18
90 - 18 = W
W = 72
Hope this was useful to you!
7 I think
Pls mark brainliest
Answer:
15.5%
Step-by-step explanation:
No of students that had enrolled last year = 225
This year, 260 students are enrolled.
We need to find the percent of change in the number of students. It can be calculated as :
P = (change in no of students/initial no of students)×100
So, the percent change is 15.5%.
The man weighs 60kg. The daughter weighs 30kg. The cat weighs 10kg.
The symbol V is read as 'OR'.
Hence, pVq is read as p or q.
If p or q is true(T), then pVq is also true(T).
The truth table for pVq is,
p. q. pVq
T. T. T
T. F. T
F. T. T
F. F. F
The symbol ˜ is read as negation.
˜q means the opposite of q. If q is true(T), then ˜q is false(F) and vice versa.
p. q. pVq ˜q
T. T. T F
T. F. T T
F. T. T F
F. F. F T
The symbol <-> is read as if and only if.
(pVq) <-> ˜q implies that pVq is true if and only if ˜q is true.
(pVq) <-> ˜q is the truth value of pVq only if ˜q is true (T) and the value of (pVq) <-> ˜q is the opposite of the truth value of pVq if ˜q is false (F).
p. q. pVq ˜q (pVq) <-> ˜q
T. T. T F F
T. F. T T T
F. T. T F T
F. F. F T F
The truth table is
p. q. pVq (pVq) <-> ˜q
T. T. T F
T. F. T T
F. T. T T
F. F. F F
