Answer:
Formula for the cost c, in pence, of ordering x prints
C = 12x + 60p
a) 204p
b) 348p
Step-by-step explanation:
A website offering digital photo printing charges 12p per print plus 60p postage.
Write down a formula for the cost c, in pence, of ordering x prints
Hence: formula for the cost c, in pence, of ordering x prints
C = 12x + 60p
Where x = number of prints
a) For 12prints
C = 12 × 12 + 60p
C = 204p
b) 24prints.
C = 12 × 24 + 60p
C = 348p
Answer/Step-by-step explanation:
Function A has a rate of change of 10 and function B has a rate of change of 5, so function A has a greater rate of change.
y = mx + b
The slope also known as rate of change is represented as the variable m in y = mx + b. So whatever number replacing m is the rate of change. In this problem 10 is the slope or rate of change.
In a graph, rate of change is determined by the rate in which the output is increasing or decreasing compared to the increase or decrease of the input. In this graph for every 1x added 5y is decreased. So, the rate of change is 5.
57° is the answer
A triangle adds up to 180° , a circle adds up to 180°
T = 126 °
S = 180° - 126°
S= 54°
R = 69°
Q + S + R = 180°
69 + 54° = 123°
=180° - 123° =
Q= 57°
So she lost 20% of the original selling price.
$64 is 80% of the original price.
64/80=0.8
0.8·100=80 dollars. HOPE THIS HELPS!!!
Answer:
y = -6x - 6
Step-by-step explanation:
<u>First, subtract 12x from both sides:</u>
12x + 2y = -12
-12x -12x
-----------------------
2y = -12x - 12
<u>Divide both sides by 2:</u>
y = -6x - 6