1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
amid [387]
3 years ago
15

Lee worked a total of 30 hours at two jobs last week her combined pay from the jobs was $240 she earned $9 per hour working at t

he movie theater and $6 per hour working in her aunt's store. How many hours did she spend working in her aunt's store last week?
Mathematics
1 answer:
Sonja [21]3 years ago
3 0

Answer:she spent 10 hours working in her aunt's store last week.

Step-by-step explanation:

Let x represent the number of hours that Lee spent working at the movie theater.

Let y represent the number of hours that Lee spent working at her aunt's store.

Lee worked a total of 30 hours at the movie theater and her aunt's store. This means that

x + y = 30

Her combined pay from the jobs was $240. She earned $9 per hour working at the movie theater and $6 per hour working in her aunt's store. This means that

9x + 6y = 240 - - - - - - - - - -1

Substituting x = 30 - y into equation 1, it becomes

9(30 - y) + 6y = 240

270 - 9y + 6y = 240

- 9y + 6y = 240 - 270

- 3y = - 30

y = - 30/ - 3 = 10 hours

You might be interested in
The blueprint of a rectangular house is 2.5 inches by 1.5 inches. If the scale is 1:20, what is the perimeter of the actual hous
defon

Answer:

160

Step-by-step explanation:

(2.5 x 2)+(1.5 x 2) =8      (perimeter of scale)

8x20 = 160

4 0
3 years ago
A bag of 8 rolls for $1.89 or a bag of 18<br> rolls for $3.79
Delvig [45]

Answer:

8 rolls for $1.89

Step-by-step explanation:

when you divide to see how much each one costs the 8 rolls is better

4 0
3 years ago
Read 2 more answers
Identify the law illustrated by: 4(3x-7) is equivalent to 12x-28.
11Alexandr11 [23.1K]

Answer:

Distributive law of multiplication

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
He function f(x) = x2 + 10x – 3 written in vertex form is f(x) = (x + 5)2 – 28. What are the coordinates of the vertex?
strojnjashka [21]
I believe it would be A, (-5, -28). 
4 0
3 years ago
Is 4 a factor of 28 in math
aalyn [17]
True, because:

4*7=28
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following sets of angles of a triangle represents an acute triangle?
    13·2 answers
  • The data set gives the number of hours it took each of the 10 students in a cooking class to master a particular technique.
    15·2 answers
  • Calculate the value of c
    13·2 answers
  • 1. What are the parts of a simple paragraph?
    12·2 answers
  • Arrie is planning her birthday party at a restaurant. She cannot spend more than $75 on the party. The cost per person for the m
    9·1 answer
  • Scenario:
    13·1 answer
  • Need help asap pic included
    14·1 answer
  • Can someone help me with this one plz
    15·2 answers
  • What does 40x+22-2 equal? please help ASAP
    13·1 answer
  • How much did it cost trudy to get the loan for $500
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!