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
krek1111 [17]
3 years ago
10

×

Mathematics
2 answers:
german3 years ago
4 0

Let

x------> hours worked by Sara last week

y------> hours worked by Joan last week

z------> hours worked by Erin last week

we know that

x=28 hours ------> equation 1

y=x-6-----> equation 2

substitute the value of x in equation 2

y=28-6=22 hours

z=y/2------> equation 3

substitute the value of y in the equation 3

z=22/2=11 hours

<u>the answer is</u>

Sara worked 28 hours last week

Joan worked 22 hours last week

Erin worked 11 hours last week

bulgar [2K]3 years ago
3 0

Answer:

Sara worked for 28 hours last week.

Joan worked for 22 hours last week.

Erwin worked for 11 hours last week.

Step-by-step explanation:

Given :

Sara worked 28 hours last week.

Joan worked 6 hours less than Sara

Erin worked half as many hours as Joan.

To Find : How many hours did Sara, Joan, and Erin work last week?

Solution :

Since Sara worked for 28 hours last week .

And Joan worked for 6 hours less than Sara.

Then Joan worked for hours = 28-6 = 22 hours

Now we are also given that Erin worked for  half as many hours as Joan

So, Erin worked for hours = Joan hours /2 = 22/2 = 11 hours.

Thus, Sara worked for 28 hours last week.

Joan worked for 22 hours last week.

Erwin worked for 11 hours last week.



You might be interested in
Please help me asap!! Which of these lines, if any, are parallel or perpendicular?
Over [174]
Lines A and B are parallel. Lines A and B apre perpendicular to Line C.

Change all of the lines from standard form to slope-intercept.

Line A: y = 4/3x + 2/3
Line B: y = 4/3x + 2
Line C: y = -3/4x + 1

Since A and B have the same slope they are parallel. C has a negative reciprocal so it's perpendicular.
4 0
3 years ago
CAN SOMEONE HELP ME PLEASE ASAP!?
Andrews [41]

Answer: 69

Step-by-step explanation:

The two angles are a linear pair, which means that they lie on the same line. Therefore, you just have to substract angle 1 with 180.

180-111=69

5 0
2 years ago
A bracelet that normally sells for $30.00 is on sale for $25.50. What is the percent discount?
vekshin1

Answer:

15% off

Step-by-step explanation:

We know we paid $25.50 of the original $30. We can divide these two numbers \frac{25.5}{30}=0.85. This is means we paid 85% of the original price. The discount percentage is the remaining percentage from 85 to 100 which is 15. The pants were 15% off.

3 0
2 years ago
PLZ ANSWER IT HARD FOR ME
creativ13 [48]
First you have to find a common denominator between all the fractions which would be 12 for the first week it would be reduced to 6 3/12 and the second 4 8/12 both added together would be 10 and 11/12 so the equation would be 15 4/12 - 10 11/12 which would be 4 5/12.
6 0
3 years ago
I need to show how to find these solutions 1/4 and 3/4 by completing the square!
Arlecino [84]

Answer:

See explanation, and ask for more details if unclear!

Step-by-step explanation:

The perfect square of this equation is x^2-x+\frac{1}{4}, since the square would be (x-\frac{1}{2})^2. 1/4=4/16, meaning that you can set up the equation in the following way:

(x^2-x+\frac{1}{4})-\frac{1}{16}=0

(x-\frac{1}{2})^2=\frac{1}{16}

Take the square root of both sides:

x-\frac{1}{2}=\pm \frac{1}{4}

Add 1/2 to both sides:

x=\frac{1}{2}\pm \frac{1}{4}=\frac{3}{4}, \frac{1}{4}. Hope this helps!

8 0
3 years ago
Read 2 more answers
Other questions:
  • A farmer has one square mile land . If he divides his land into square fields that are 1/4 mile long and 1/4 mile wide,how many
    11·1 answer
  • Tegan needs to make 68 more snow blocks to finish building an igloo. Write an equation for the number of blocks Tegan still need
    12·2 answers
  • How do you find the exact trigonometric functions of -7pie
    8·1 answer
  • The graph of a function f(x)=5to the power of x -5 contains the point (2,y) what is the value of y
    11·1 answer
  • Select the correct answer.
    13·1 answer
  • 6x6x6x6x6x6 15x15x15 Write the product as a power
    8·2 answers
  • The diagram below shows vector v.
    13·1 answer
  • kim orders catering from Midtown Diner for 35 dollars. She spends 5 dollars on a large order of potato salad and the rest on tur
    6·2 answers
  • What is the surface area?<br><br> 5 cm<br> 1 cm<br> 3 cm
    15·1 answer
  • Round 5,784 to the nearest ten
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!