Answer:
x=-3
Step-by-step explanation:
7x=-13-8
7x=--21
x=-21/7
x=-3
points or brainleist please
Answer:
1400
Step-by-step explanation:
Given: Cost of Regular ticket = $9.50
Cost of Matinee tickets= $7
Total number of people= 5000
Total spending in watching movie= $44000.
Lets assume total number of people attended matinee be "x".
∴ Number of people attended Regualr show= 
We know, total cost= 
Now, forming an equation to show total spending on tickets.
⇒ 
Using distributive property of multiplication to multiply 9.50 with 5000 and -x.
⇒ 
⇒ 
Adding both side by 2.5x
⇒ 
subtracting both side by 44000
⇒ 
Dividing both side by 2.5
⇒
∴
Hence, number of people attended the matinee show are 1400.
Answer:
he have left 4.45 kg
Step-by-step explanation:
The computation of he have left is as follows:
= Total salt purchase - salt used on his sidewalk - sales used on the driveway

= 4.45 kg
Hence, he have left 4.45 kg
Answer:
negative
Step-by-step explanation:
that would be a negative corrolation
The dot product is used to determine the magnitude of the resultant vector of two component vectors. It is expressed as a·b. It does not literally mean that you multiply their values. Instead, you multiply their matrices. However, since we cannot find matrices, let's just find the resultant vector through theorems involving triangles. By cosine law:
R = √[a² + b² - 2abcos(3π/4)]
R = √[60² + 30² - 2*60*30*cos(3π/4)]
R = 83.94
Thus, a·b = 83.94