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
trapecia [35]
3 years ago
14

jill mowed lawns for 3 hours and earned $7.20 per hour.Then she washed windows for 4 hours and earned $6.75 per hour. what were

jill's average earnings per hour for all 6 hours?
Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
5 0
Actually, she worked for seven hours, so I'll solve for that.

7.20 x 3 = 21.6

6.75 x 4 = 27

21.6 + 27 = 48.6

48.6 /2 = 24.3

Her average should be $24.3  If she did work six hours, just multiply 6.75 x 3 and do what I did.
You might be interested in
The Family Fine Arts Center charges $21 per adult and $13 per senior citizen for its performances. On a recent weekend evening w
uysha [10]

Answer:

175 adults

360 senior citizens

Step-by-step explanation:

Let x be the number of senior citizens

There were a total of 535 people, so

(535-x)=total number of adults

Total receipts=$8,355

Adult payments+Senior payments=$8,355

21(535-x)+13x=$8,355

$11,235-21x+13x=$8,355

$11,235-8x=$8,355

-8x=$-2,880

x=360 senior citizens

Number of adults=535-360=175 adults

To check, just substitute...

21(175)+13(360)

3,675+4,680

Which equals.....

$8,355

3 0
3 years ago
On Sunday, 370 people bought tickets to the county fair. Tickets cost $7 for adults and $3 for children. The total revenue from
STALIN [3.7K]
Number of child tickets: x
Number of adult tickets: y

1) x+y=370
2) 3x+7y=1750

Using the method of substitution
a) Isolating y in the first equation:
1) x+y=370→x+y-x=370-x→y=370-x

b) Replacing y=370-x in the second equation:
2) 3x+7y=1750→3x+7(370-x)=1750

c) Solving for x: Distributive property:
3x+7(370)-7x=1750
3x+2590-7x=1750

Adding similar terms:
-4x+2590=1750

-4x+2590-2590=1750-2590
-4x=-840

Dividing both sides of the equation by -4:
-4x/(-4)=-840/(-4)
x=210

Replacing x=210 in the first equation:
1) y=370-x→y=370-210→y=160

Answer:
The number of child tickets was 210 and
the number of adult tickets was 160
5 0
3 years ago
Help me out please i need this
mart [117]

Answer:

Just restart your computer

8 0
3 years ago
Use the graphing calculator to locate the solutions of this system of equations: y = x2 + x – 2 y = –x + 1 What are the solution
mamaluj [8]
By using a graphing calculator, the solutions are:

(-3, 4) and (1, 0)
7 0
3 years ago
Read 2 more answers
Joanna is considering taking out a loan. She has a few options and wants to compare them. Her first option is a single payment l
fgiga [73]

Answer:

the value would be $1,250,000

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • A missile protection system consists of n radar sets operating independently, each with probability 0.9 of detecting a missile e
    7·1 answer
  • Garland put 2b+ 3 dollars in the bank in the first week. The following week he doubled the first week’s savings and put that amo
    10·1 answer
  • The fluoride minimum is 3 and maximum is 10
    15·1 answer
  • PLEASE HELP !!! WILL MARK BRAINLIEST TO WHOEVER GETS IT RIGHT !!
    9·2 answers
  • What is the definition of vertical angles
    15·2 answers
  • What is the slope of the line that passes through (3, 14) and (7, 9)?
    13·2 answers
  • In a shipment of 500 light bulbs, 25 of them were broken. What percentage of the light bulbs were broken?
    9·2 answers
  • X = 11<br> 1-4x + y = -23<br> Solve the system of equations.
    10·2 answers
  • Simplify x2 + 10x + 9 over 2(x + 9) − (x + 9)
    12·1 answer
  • 1.235 X 10<br> HELP PLEASE
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!