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
Harrizon [31]
3 years ago
14

i need help with this questions asap please. A grocery clerk is making a display of oranges. The numbers of oranges in the layer

s of the display form a sequence, with the top layer counting as layer 1. The explicit rule f(n) = (n + 1)2 describes this sequence, where n is a whole number greater than 0. Will 50 oranges be enough to complete the top 4 layers of the display?
Mathematics
1 answer:
ahrayia [7]3 years ago
3 0

Answer:

If there is 1 at the top, then you have 1, then 2, then 3, etc.

total number of oranges equals:

1 + 2 + 3 + ... + 16 + 17 + 18 <-- stop at  18 because this is the number of oranges at the base

You can use the formula:

sum of first n numbers = n*(n + 1)/2

-->

18*19/2 = 9*19 = 171

or you can figure it out (basically derive the above formula):

you have:

1 + 18 = 19

2 + 17 = 19

3 + 16 = 19

...

How many pairs do you have?  Well, it's just the number of numbers: 1-18 = 18 numbers (divide by 2) = 9 pairs)

9 pairs of 19 = 9 * 19 = 171

Hope this helps!

Step-by-step explanation:

You might be interested in
Express 0.01620.01620, point, 0162 as a fraction.
just olya [345]
162/10000 is the answer to this question

8 0
3 years ago
What is the speed of a bus that travels 250 km in 2 hours
Ber [7]
The speed of a bus that travels 250 km in 2 hours is 145 because you have to divide 250 km and 2 hours which gives 145.

Hope this helps:)
8 0
3 years ago
Read 2 more answers
Twice the sum of x and 5
SIZIF [17.4K]
I believe it would be x+5^2
3 0
3 years ago
Read 2 more answers
Write as a unit rate<br>12 inches of rain in 6 hours​
RideAnS [48]
Answer is 2 inches per hour.

12 inches/6 hours divided by 6 is 2 inches/ 1 hour.
5 0
2 years ago
A ski resort charges a fee for renting skis or snowboards that is proportional to the cost of admission. The admission cost for
Softa [21]

The total cost for snowboarding is $124 because: 32 + 54 + 38 = 124

7 0
3 years ago
Other questions:
  • PLEASE HELP ASAP! Will give brainliest!!
    12·1 answer
  • What is the check digits (d) for the master card number 5130 7201 2608 209d <br> A)1 B)3 C)5 D)7
    12·1 answer
  • Your school wants to have 5 computers for every 12 students.There are now 125 computers and 924 students.How many more computers
    11·1 answer
  • 4. Calculate using the order of operations.<br>a) (+30) / (-10) + (-20) / (-1)​
    14·1 answer
  • Write the value of the underlined digit 6.54
    15·2 answers
  • A go kart speed is 607,200feet per hour what is the speed in miles per hour.
    8·2 answers
  • The alternating current (AC) breakdown voltage of an insulating liquid indicates its dielectric strength. An article gave the ac
    7·1 answer
  • Solve the equation. Check the solution. <br> a - 3.2 = 5.5
    13·2 answers
  • What is the surface area of the cylinder with height 8 ft and radius 5 ft? Round your answer to the nearest thousandth.
    8·1 answer
  • Represent each set of data in a dot plot. Determine the median, mode, and range.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!