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
ahrayia [7]
3 years ago
9

a machine can reduce 21 inches of ribbon every 3 minutes. How many feet of ribbon can the machine make in one hour?

Mathematics
1 answer:
Zarrin [17]3 years ago
3 0
Okay. Let's make a proportion for this. So we can do 21/3=x/60. Let's multiply cross way. So 21 x 60 is 1260. We multiply 3 by x to get 3x. So our equation will be 3x=1260. We can isolate the equation by 3, and 1260 divided by 3 is 420. So x=420. We then have to convert into feet. So 420 divided by 12 is 35. So it would be 35 feet. Therefore, the machine can make 35feet of ribbon in a hour.
You might be interested in
If x2 + y2 = 100 and dy/dt = 4, find dx/dt when y = 6. (enter your answers as a comma-separated list.) dx dt
Ulleksa [173]
Y=6, X=8, t=3/2 then dx/dt=5.33 or 16/3
5 0
4 years ago
Read 2 more answers
The common 6 and 10 lcm= ??
Agata [3.3K]
30 is the lowest common multiple
3 0
3 years ago
Read 2 more answers
A bowl of candy is sitting on the counter. If there are twelve blue pieces, fourteen red pieces, and six yellow pieces in the bo
MatroZZZ [7]
If you add 12(blue) 14(red) 6(yellow) you get 32 so 12/32 is 0.37
7 0
4 years ago
Read 2 more answers
A teacher decides to purchase a new car and considers two options. Option one is the new Zoomba for $60,000 with an expected dep
kupik [55]

Answer:

She chose Option 2 which is a linear option, because it offers a smaller lose    

in value compared to option 1 which is an exponential option.

The final value for option 2=$32,800

Step-by-step explanation:

Option 1

New Zoomba for 60000 with a depreciation rat of 2%per month for 3 years

Exponential equation;

y=a(1-r)^t

where;

y=future value

a=initial value=60000

r=depreciation rate=2% per month

t=time interval=12×3=36 months

Replacing;

y=60000(1-2/100)^36

y=60000(0.98)^36=28,992.79

The value after 3 years=$28,992.79

Initial value-Final value=(60000-28992.79)=$31007.21

Percentage of initial value lost=((Final value-Initial Value)/(Initial Value))×100

(31007.21/60000)×100=51.68%

Option 2

New starfish for $40,000 with a depreciation of $200 per month for 3 years

Linear equation;

y=a-bt

where;

y=Future value

a=Initial value=$40,000

b=the depreciation amount per time interval=$200 per month for 3 years

t=time interval=(3×12)=36 months

Replacing;

y=40000-(200×36)

y=32,800

Final value=y=$32,800

Initial value-Final value=(40000-32800)=$7200

Percentage of initial value lost=((Final value-Initial Value)/(Initial Value))×100

(7200/40000)×100=18%

Option 1(51.68%)>Option 2(18%) therefor Option 1 loses value at a faster rate than Option 2

She chose Option 2 which is a linear option, because it offers a smaller lose    

in value compared to option 1 which is an exponential option

4 0
3 years ago
What's the distributive of 3×50
Paha777 [63]

Answer:

3

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Evaluate each function.<br> h(x) = 2x + 2; Find h(10)<br> O 22<br> O 18<br> O 8<br> O -8
    9·1 answer
  • snowfall the total snowfall for last year was 36.4 in the graph shows snowfalls for 3 months last year and the same three months
    5·2 answers
  • 30 POINTS AND BRAINLIEST PLEASE HELP!!! Dogs in the GoodDog Obedience School win a blue ribbon for learning how to sit, a green
    15·1 answer
  • Least to greatest 0.9 7\8 86\100
    8·1 answer
  • HELP ME WITH MATHHH!!!
    6·1 answer
  • What is (1276-837)^7 x 6^10 - 1000? (No need to show work). This sign-&gt; )^7 means "to the power of"!
    6·2 answers
  • Melanie's car used 9 gallons to travel 306 miles. How far can she travel on 11 gallons?
    12·1 answer
  • Are these correct? <br> Histograms/Leaf &amp; Stem plot
    7·1 answer
  • There are 4 red balls, 6 white balls, and 3 green balls in a bag. If one ball is drawn from the bag at random, what is the proba
    15·1 answer
  • Select the correct answer.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!