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
Sidana [21]
2 years ago
11

juan and debbie each earn 9 per hour at their "jobs." Debbie worked five hours more than juan during the week. if juan and debbi

e earned a total of 765 for the week, how many hours did debbie work
Mathematics
1 answer:
Vaselesa [24]2 years ago
3 0

Using a system of equations, it is found that Debbie worked 45 hours during the week.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

  • Variable x: Amount of hours worked by Juan.
  • Variable y: Amount of hours worked by Debbie.

Juan and Debbie each earn 9 per hour at their "jobs", and earned a total of 765 for the week, hence:

9x + 9y = 765

Simplifying the expression by 9:

x + y = 85 -> x = 85 - y.

Debbie worked five hours more than juan during the week, hence:

y = x + 5.

Since x = 85 - y, we replace in the expression:

y = 85 - y + 5.

2y = 90.

y = 45.

Debbie worked 45 hours during the week.

More can be learned about a system of equations at brainly.com/question/24342899

#SPJ1

You might be interested in
Which of the following is equivalent to X2 - 8x - 7 = 0?
I am Lyosha [343]

Answer:

Part 1)   (the missing steps in the explanation)

Part 3) (8, 4); The vertex represents the maximum profit

Part 4) x = 3.58, 0.42

Part 5) x = 6, x = 44; The zeros represent the number of monthly memberships where no profit is made

Part 6) 2(x − 7)2 + 118; x = $7

Part 7) The maximum height of the puck is 4 feet. −(x − 4)^2 + 6

Part 8) (x + 3)^2 − 4

Part 9) 2(x − 1)^2 = 4

Part 10) 8(x − 4)^2 + 592

Step-by-step explanation:

3 0
3 years ago
What is the volume of a cylinder with a diameter of 14 cm and a height of 4 cm.
malfutka [58]
Radius= 7cm
Base area= 49pi
Volume= 49pi*4= 196pi=615.75cm^3
8 0
3 years ago
Find the surface area of the figure
saveliy_v [14]

Answer:

36 in over 2

Step-by-step explanation:

4 0
2 years ago
HURRYYY!!!
Tema [17]
The last two.

They are equivalent

3+3=6 6•4=24

4•3=12 12+12 is 24
7 0
3 years ago
Helen wrote the following facts to try to show that division by 0 results in 0. Explain her error.
earnstyle [38]

Helen should of put 0 first, because if you're gonna divide, you need to put the product first, then one of the factoes.

So instead it should be 0÷(-7)=0

3 0
3 years ago
Other questions:
  • What percent of 38 is 15
    7·2 answers
  • Write the slope intercept form of the equation of the line through the given point with the given slope
    13·1 answer
  • Solve for b.<br> -b - 19 = -3b – 9
    7·1 answer
  • What is the probability that a single card chosen from a complete deck of cards is not an ace or a King? ( with explanation )
    7·2 answers
  • Pls Help dont get this
    9·2 answers
  • Line segment AB was dilated to create line segment A'B' using the dilation rule DQ,0.15.
    13·1 answer
  • Sue is 20 feet below sea level in a cavern. She climbs up out of the cavern
    10·1 answer
  • The measures of the exterior angles of a hexagon are x°, 2x°, 4x°, 6x°, 7x°, and 10x°. Find the measure of the smallest exterior
    9·1 answer
  • If i= -1, what is the value of i3?<br> O-1<br> Ο i <br> O 1<br> O -i
    13·1 answer
  • Need help!!!!!! ASAP
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!