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
USPshnik [31]
4 years ago
8

It takes a student 11 seconds to scan their hand at lunch. During one 30 min lunch period, approximately how many students can b

e scanned??? Is it 18,1008,180,1800. Plzzz I will give you 100 points
Mathematics
1 answer:
julia-pushkina [17]4 years ago
4 0

It takes 11 seconds to scan one person. So we have this ratio to start with

11 seconds: 1 person

Divide both sides by 11 to get this new ratio

1 second: 1/11 person

1 second: 0.0909 person

So in 1 second, 0.0909 of a person can be scanned. This statement seems silly because we can't have a fraction of a person, but it helps with the next part as shown below. The next step is to multiply both sides by 1800 to get....

1 second: 0.0909 person

1800*1 second: 1800*0.0909 person

1800 seconds: 163.62 persons

In a span of 1800 seconds (equivalent to 30 minutes), about 163 people's lunches can be scanned. Unfortunately, none of the answer choices are 163. The closest thing is 180, but that is an overestimate. So I would ask your teacher if there is a typo somewhere.

Note: if it took exactly 10 seconds for each student (instead of 11), then the answer would be 1800*(1/10) = 1800*0.10 = 180.

You might be interested in
Question 6 of 10
olchik [2.2K]

Answer:

B

Step-by-step explanation:

Just got the wrong answer on apex and it told me b was the right answer

8 0
3 years ago
Find the percent of change <br><br> a: 1/3 to 2/3<br><br> b: 1/3 to 1/6<br><br> please help!
Dimas [21]

Answer:

a: The percentage change from 1/3 to 2/3 is 100 %

b: The percentage change from 1/3 to 1/6 is 0 %

Step-by-step explanation:

use this formula:

((y2 - y1) / y1)*100 = your percentage change

(where y1=start value and y2=end value)

((2/3 - 1/3) / 1/3) * 100 = 100 %

_________________________________

((y2 - y1) / y1)*100 = your percentage change

(where y1=start value and y2=end value)

((1/6 - 1/3) / 1/3) * 100 = 0 %

3 0
4 years ago
The surface area of a prism is 125 in2. the 2 is suposed to be cubed or squared or whatever
Rasek [7]
Surface area is area so it's in^2 or inches squared
12 in=1 foot therfor
1in<1 foot
so therfor if we converted the surface area to feet, then the number would decrease, but the actual area would stay the same because we just converted the units, we didn't change the actuall area

therfor the answers are A and E
6 0
4 years ago
Find the midpoint of the segment with the following endpoints.<br> (4, 2) and (7, 6)
Artist 52 [7]

The midpoint of the segment with the following endpoints, (4, 2) and
(7, 6) is (5.5, 4).

How to determine the midpoint of a given segment?
The center point of a straight line can be located using the midpoint formula. We can use this midpoint formula to determine the coordinates of the supplied line's midpoint in order to discover its location on a graph. Assuming that the line's endpoints are (x₁, y₁) and (x₂, y₂), the midpoint (a, b) is determined using the following formula:
(a , b) ≡ (((x₁ + x₂)/2), ((y₁ + y₂)/2))

Let the line segment be AB having endpoints as A(4, 2) and B(7, 6);
also let the co-ordinates of midpoint be C = (a, b)
Using the given formula in the available literature,
(a, b) = ((4 + 7)/2, (2 + 6)/2)
Equating parts of the previous equation, we get,
a = (4 + 7)/2 = 11/2 = 5.5
b = (2 + 6)/2 = 4
Thus, the midpoint of the segment is (5.5, 4).

To learn more about this, tap on the link below:
brainly.com/question/5566419

#SPJ9

4 0
1 year ago
George saves nickels and dimes for tolls. If he has 28 coins worth $2.60, how many are nickels and how many are dimes? (There sh
Rom4ik [11]
<span>The number of dimes saved was $1.20/$0.05 = 24
I don't know if it helped or not.

</span>
4 0
4 years ago
Other questions:
  • Eight hundred tickets are sold for a play. Thirty-five percent of those tickets were sold in advance. Which equation can be used
    7·2 answers
  • I need help fast please
    10·1 answer
  • 9. Which one of the following dealt with
    7·1 answer
  • At the theater one section of seats has 8 rows of 12 seats in each row. In the center of the first 3 rows are 4 broken seats tha
    9·2 answers
  • n animal shelter spends $3.50 per day to care for each bird and $4.00 per day to care for each cat. Katherine noticed that the s
    15·1 answer
  • What is the answer??
    12·2 answers
  • A cat and dog shelter houses 23 animals that are 5 more cats than dogs y. Write and solve a system of linear equations to find t
    13·1 answer
  • Evaluate the equation. -4x = 14 A.10 B. 7/2 C. -7/2 D. -10
    8·2 answers
  • A
    13·2 answers
  • Solve the system of equations below
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!