2a.3e 2
jackie has two summer jobs. she works as a tutor, which pays $12 per hour, and she works as a
lifeguard, which pays $9.50 per hour. she can work no more than 20 hours per week, but she wants
to earn at least $220 per week. which of the following systems of inequalities represents this
situation in terms of x and y, where x is the number of hours she tutors and y is the number of hours
she works as a lifeguard?
a) 12x + 9.5y < 220
x + y = 20
b) 12x + 9.5y = 220
x + y = 20
c) 12x + 9.5y > 220
x + y = 20
d) 12x + 9.5y > 220
x + y 20

Step-by-step explanation:

Let x be the number of hours Jackie tutors and y is the number of hours she works as a lifeguard.

She can work no more than 20 hours per week, thus

Jackie works as a tutor, which pays $12 per hour, then she earns $12x in x hours.

She works as a lifeguard, which pays $9.50 per hour, then she earns $9.50y in y hours.

Jackie wants to earn at least $220 per week, so

So, you get the system of two inequalities:

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: