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
son4ous [18]
3 years ago
13

For every 3 packages that Marcella wraps she uses 1/2 of a roll of wrapping paper if she uses 2 1/2 rolls of wrapping paper how

many packages has she wrapped
Engineering
2 answers:
Tju [1.3M]3 years ago
7 0

Answer:

The answer is 15 packages

Explanation: 1/2 = 3packages in total she has 2 1/2. So 1/2+ 1/2 = 3 + 3= 6

then again we do 1/2 + 1/2 = 3 + 3 = 6 + 6 = 12 and then since it is 2 1/2 we add 3 again so 12 + 3 = 15 packages

hram777 [196]3 years ago
6 0
She wrapped 5 packages
You might be interested in
Calculate the electroosmotic velocity of an aqueous solution through a glass capillary 5 cm long with a 0.5 mm internal diameter
natita [175]

Answer:

Electroosmotic velocity will be equal to 1.6\times 10^{-4}m/sec

Explanation:

We have given applied voltage v = 100 volt

Length of capillary L = 5 mm = 0.005 m

Zeta potential of the capillary surface \xi =80mV=0.08volt

Dielectric constant of glass is between 5 to 10 here we are taking dielectric constant as \epsilon =10

Viscosity of glass is \eta =10^8

Electroosmotic velocity is given as v_{eo}=\frac{\epsilon \xi }{\eta }\times \frac{v}{L}

v_{eo}=\frac{10\times 0.08 }{10^8 }\times \frac{100}{0.005}=1.6\times 10^{-4}m/sec

So Electroosmotic velocity will be equal to 1.6\times 10^{-4}m/sec

8 0
3 years ago
To assist in completing this question, you may reference the Animated Technique Video - MALDI-TOF Mass Spectroscopy. Complete th
a_sh-v [17]

Complete Question

The complete question is shown on the first uploaded image.

Answer:

The answer is shown on the second uploaded image

Explanation:

The explanation is also shown on the second uploaded image

3 0
3 years ago
When were dresses made
klio [65]

Answer:

The world's oldest dress called the Tarkhan Dress is at 5,100 to 5,500 years of age.

Does that help? Or do you need something else? I can change my answer if this is not what you need! :D

Explanation:

6 0
3 years ago
Water at 15°C is to be discharged from a reservoir at a rate of 18 L/s using two horizontal cast iron pipes connected in series
Zina [86]

Answer:

0.245 m^3/s

Explanation:

Flow rate through pipe a is 0.4 m3/s Parallel pipes have a diameter D = 30 cm => r = 15 cm = 0.15 m Length of Pipe a = 1000m Length of Pipe b = 2650m Temperature = 15 degrees Va = V / A = (0.4m3/s) / (3.14 (0.15m)^2) = 5.66 m/s h = (f(LV^2)) / D2g (fa(LaVa^2)) / Da2g = (fb(LbVb^2)) / Da2g and Da = Db; fa = fb LaVa^2 = LbVb^2 => La/Lb = Vb^2/Va^2 Vd^2 = Va^2(La/Lb) => Vb = Va(La/Lb)^(1/2) Vb = 5.66 (1000/2650)^(1/2) => 5.66 x 0.6143 = 3.4769 m/s Vb = 3.4769 m/s V = AVb = 3.14(0.15)^2 x 3.4769 m/s = 0.245 m^3/s

5 0
3 years ago
When you first start a car after it has been sitting for more than an hour, it pollutes up to ......times more than when the eng
lesya [120]
20 time more then when it’s warm
6 0
3 years ago
Read 2 more answers
Other questions:
  • A gear box’s shaft is made of a hollow circular steel tube with allowable yield stress equal to σa????????o???? . The shaft is l
    7·1 answer
  • How much heat (Btu) is prod uced by a 150-W light bulb that is on for 20-hours?
    14·1 answer
  • The water behind Hoover Dam in Nevada is 221 m higher than the Colorado River below it. At what rate must water pass through the
    6·1 answer
  • The input and output signals of a system is related by the following equation: fraction numerator d squared y over denominator d
    11·1 answer
  • The mean of 10 numbers is 9, then the sum (total) of these numbers will be​
    10·2 answers
  • 1. What's the maximum overall length of the part?<br> 2. What material is used to fabricate the part
    5·1 answer
  • A retail business, owned by share holders and having centralized decision making for their multiple store locations is called:
    13·1 answer
  • simple Brayton cycle using air as the working fluid has a pressure ratio of 10. The minimum and maximum temperatures in the cycl
    7·1 answer
  • For a small company it's usually best to keep the corporate and brand image as___ as possible​
    9·1 answer
  • Most equipment is cooled by bringing cold air in the front and ducting the heat out of the back. What is the term for where the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!