Answer:
.9 or 90%
.1 or 10%
Step-by-step explanation:
E= Exam
P=Paper
E= .71
P= .45
E∩P=.26
A.) E∪P=?
E∪P= E+P-E∩P
.71+.45-.26= .9
B.) E'∩P' = (E∪P)'
(E∪P)' = 1-.9 = .1
Answer:
12 if x_y
Step-by-step explanation:
12= 3x4 (I'm sorry for this, I need points)
Answer:
The value of x is 3.
Step-by-step explanation:
Matthew earned 7500 of 15000, which is exactly half the total amount, meaning that the fraction corresponding to his earnings is 1/2.
Rate of 5:2:x, with number 5 corresponding to Matthew, mean that his fraction of the earnings, in function of x is given by:

Both fractions are equal, so:

Applying cross multiplication:



The value of x is 3.
False — if it doesn’t cross, it has no real roots.
9514 1404 393
Answer:
y = 750 -100x
Step-by-step explanation:
The initial remaining balance is 750. The balance decreases by 100 per month, so is reduced by 100x. The equation describing this is ...
y = 750 -100x