Answer:
b= 7
Step-by-step explanation:
3b +15 = 8b -20
-8b
-5b = -35
/-5
b= 7
Answer:
Not a function
Not a function
Function
Step-by-step explanation:
The 1st one isn't as clear in the picture, but it looks like the ends of each line overlap the each other.
Answer: 
Step-by-step explanation:
Given
Klarissa requires 
cups of flour to make a recipe
Convert mixed numeral to fraction
If she wants to triple the recipe then,
Answer:
y = -5x + 2
Step-by-step explanation:
Think about it this way:
y = ax + b
(a) = represents the slope
(b) = represents the y-intercept.
if the Y- intercept is negative so the "+" will turn to a "-"
Answer:
13 trucks & 52 dolls
Step-by-step explanation:
Let number of trucks sold be t
and
number of dolls sold be d
Since dolls sold were 4 TIMES of trucks, we can write our 1st equation as:
d = 4t
Also, trucks cost 17 and dolls cost 24 and together they sold 1469, so we can write 2nd equation as:
17t + 24d = 1469
Putting 1st equation in 2nd one, we get an equation in "t" and lets solve for t:
17t + 24(4t) = 1469
17t +96t = 1469
113t = 1469
t = 1469/113 = 13
So, 13 trucks were sold
And, now we know d = 4t, so d = 4(13) = 52
So, 52 dolls were sold
