The slope of the given equation is -2/5 so the slope of the perpendicular is 5/2.
Answer:
750 minutes
Step-by-step explanation:
Let the number of minutes be represented as x
1 cent = 0.01
Beetle cellular offers cellular phone service for 39.95 a month plus one cent a minute.
$39.95 + 0.01x
Salamander digital offers cellular phone service for 9.95 a month plus five cents a minute.
$9.95 + 0.05x
How many minutes would a person need to use a month for beetle cellular to cost the same as salamander digital?
This is calculated as:
Beetle cellular = Salamander digital
$39.95 + 0.01x = $9.95 + 0.05x
Collect like terms
$39.95 - $9.95 = 0.05x - 0.01x
$30.00 = 0.04x
x = $30.00/0.04
x = 750 minutes
A person need to use 750 minutes a month for beetle cellular to cost the same as salamander digital.
Answer:
x=0, y=4
x=2, y=5
x=4, y=6
x=6, y=7
x=8, y=8
x=10, y=9
Step-by-step explanation:
To answer this item, we let x be the amount of sales for each of them. Their weekly earnings would be as follows,
Rico:
750 + 0.05x
Sean:
1100 + 0.025x
Equating both expressions,
750 + 0.05x = 1100 + 0.025x
Simplifying,
0.025x = 350
The value of x from the equation is 14000.
Answer: $14,000.