Answer:
The value of x is -3.
Explanation:
Given the equation:
Step 1: Distribute 4 in the left-hand side.
Step 2: Collect like terms.
Step 3: Divide both sides by 3.
The value of x is -3.
4 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
Calculating the average speed during this time interval is the same as calculating how many km he traveled per hour.
This is also the same thing as the unit rate. Do that division and find that he traveled 100 km/hr.
Answer:
8 and 6
Step-by-step explanation:
Two numbers are such that their difference, their sum, and their product are to
each other as 1:7:24. Their product must equal what number?
:
Two numbers a & b
Let x = the multiplier
:
a - b = 1x
a + b = 7x
a * b = 24x
:
Add the 1st two equations
a - b = x
a + b = 7x
2a = 8x
a = 4x
or
x = .25a
:
a * b = 24x
Replace 24x; a = 4x therefore:
a * b = 6a
b = 6
;
Using the 1st equation
a - b = 1x
Replace b with 6 and x with .25a
a - 6 = .25a
a - .25a = 6
.75a = 6
a =
a = 8
:
Find the multiplier
a - b = x
8 - 6 = 2
:
Check this
a - b = 2 (1*2)
a + b = 14; (7*2)
a * b = 48: (24*2)
:
The numbers are 8 and 6; their products = 48
Its not a triangle at all in order for it to be a triangle the side length of 4 and the side length of 6 needs to be more than 12 so that the lines can connect.
