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
Rainbow [258]
3 years ago
8

Holly spends 7 3/5 hours in school each day. Her lunch is 1/2 hour long, and she spends 7/10 of a hour switching classes. The re

st of her day is spent in 6 classes that are the same length. How long is each class?
Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
5 0
<span>
y = 7 + 3/5
y = 35/5 + 3/5
y = 38/5
y = 2*(38/5)
y = 76/10
---
lunch time:
z = 1/2
z = 5*(1/2)
z = 5/10
---
time switching classes:
w = 7/10
---
y - 6x - z - w = 0
6x = y - z - w
x = (y - z - w)/6
x = (76/10 - 5/10 - 7/10)/6
x = (76 - 5 - 7)/(10*6)
x = (64)/(10*6)
x = (2*2*2*2*2*2)/(2*5*2*3)
x = (2*2*2*2)/(5*3)
x = 16/15

x = 1.0666666666
---
check:
y = 7 + 3/5
y = 7.6
z = 1/2
z = 0.5
w = 7/10
w = 0.7
y - 6x - z - w = 0
6x = y - z - w
x = (y - z - w)/6
x = (7.6 - 0.5 - 0.7)/6
x = 1.0666666666

answer:
 1.07 hours</span>
You might be interested in
2(x + 4) - 5 = 3x + 3
OverLord2011 [107]

Answer:

x=0

Step-by-step explanation:

2(x+4)- 5 = 3x+3

Distribute

2x+8-5 = 3x+3

Subtract x values

8-5 = x+3

3 = x+3

Final Subtraction

x = 0

3 0
3 years ago
Read 2 more answers
Ron and Ben had a total of 700 playing cards. After Ron gave away 40% of his playing cards and Ben gave away 20% of his playing
allsm [11]
Ron had 140 picture cards more than Ben
5 0
3 years ago
Please help! i promise ill give brainliest, tysm
Mars2501 [29]

Answer:

f(x) = x(x-1)

Step-by-step explanation:

The easy way to do this is to look at it graphically. an inverse function is reflected across the line y=x. f(x)=x(x-1) is an upward opening parabola when reflected, there are two y-values for all positive values of x. A function can only have one y for every x.

7 0
3 years ago
Read 2 more answers
I really need help pls
Ede4ka [16]
I’m pretty sure it’s 4
5 0
3 years ago
Read 2 more answers
Find the perimeter. Simplify your answer.<br> 4c+9<br> 70-5<br> 5c+2<br> 5c-3
pickupchik [31]

Answer:

Step-by-step explanation:

Perimeter = 4c + 9 + 7c - 5 + 5c + 2 + 5c - 3

                = 4c +7c + 5c +5c + 9 - 5 + 2  - 3

                 = 21c + 3

7 0
2 years ago
Other questions:
  • Given a circle with measures of (C, d, and r) and a circle with measures of (C', d', and r'), find r' if
    8·1 answer
  • The franklins are taking a cross country trip they will drive 3150 miles in all on the first day they drove 567 miles what perce
    7·1 answer
  • PLEASE HELP ASAP<br> Brainliest!<br><br> 8C5 = __________. <br> A.40,320 B. 6,720 C.6 D. 56
    8·1 answer
  • Use division to determine whether the ratios form a proportion.
    11·1 answer
  • What the slope of the graph is
    11·2 answers
  • Find the geometric mean of 5 and 320. <br><br> A.<br> 35<br> B.<br> 40<br> C.<br> 45<br> D.<br> 50
    12·1 answer
  • Colby hit four more home runs that twice the number of home runs Dominic hit. Together they hit ten home runs. How many home run
    12·1 answer
  • Identify the conditionals and truth values implied by the following biconditional. Select all that apply.
    11·1 answer
  • The Millers put carpet on the floor of their living room. They bought 160 square feet of carpet. If the length of the room is 16
    7·1 answer
  • What is the capacity of juice which measures 3L 9dL 3cL 9mL if it is equally divided into 3 bottles?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!