Answer: 12.
To solve this problem, let's first solve for x. Thi is easiest done by figuring what QR is in terms of x using two equations, both from different lines.
In the first line:
QR = 15 - 4x.
In the third line:
QR = 13x - 1 - x = 12x - 1.
Now, we have to set these equations equal to each other.
15 - 4x = 12x - 1
15 = 16x - 1
16x = 16
x = 1
Next, we take line three, 13x - 1, and substitute x as 1. The answer is 12.
Answer:
Step-by-step explanation:
(7/12) of 840 attended the concert:
(7/12)*(840) = 490 students attended the Spring Concert.
(840 - 490) = 350 did not attend
(350/840) is the fraction of students who did not attend. This can be reduced to (35/84)
(350/840) = 0.4167 or 41.67% did not attend.
C d b a are the answers hope I helped
Answer:
l=41.5
Step-by-step explanation:
Using the formula A=wl
l= 
=
=41.5
Answer:
All events are independent
Step-by-step explanation:
You are given the table
Two events A and B are independent when
a) A="Chocolate"
B="Adults"
A and B="Chocolate and Adults"
Since 
events are independent
b) A="Children"
B="Chocolate"
A and B="Children and Chocolate"
Since 
events are independent
c) A="Vanilla"
B="Children"
A and B="Vanilla and Children"
Since 
events are independent
