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
Andru [333]
3 years ago
10

A string of decorative lights is 28 feet long. The first light on the string is 16 inches from the plug. The lights on the strin

g are spaced 4 inches apart.
How many lights are there on the string?
Mathematics
1 answer:
ANEK [815]3 years ago
5 0
28 x 12 = 336
336 - 16 = 320
320 divided by 4 = 80
80
Lights
You might be interested in
Factoring GCF<br> ab^2+20ab
aleksandr82 [10.1K]

Answer:

ab(ab + 20)

Step-by-step explanation:

Because we see both terms have at least one ab in it, we can factor out ab and get ab(ab + 20). However, because ab^2 does not have any coefficient, there is nothing more to factor out. Thus, ab is your greatest common factor, or GCF.

3 0
3 years ago
Read 2 more answers
a right angled triangle has sides which are 2cm and 7cm shorter than its hypotenuse find the length of the hypoenuse
vekshin1

Answer:

The length of the hypotenuse side is (9 + 2·√7) cm

Step-by-step explanation:

The given parameters of the triangle are;

The type f triangle = Right triangle

The length of the sides 2 cm and 7 cm shorter than the hypotenuse

Let 'h' represent the length of the hypotenuse side of the triangle, in centimeters we have;

The length of one side of the right triangle = (h - 2) cm

The length of the other side of the right triangle = (h - 7) cm

By Pythagoras's theorem, we have;

h² = (h - 2)² + (h - 7)²

Using search function on the internet, we have;

h² = (h - 2)² + (h - 7)² = 2·h² - 18·h + 53

∴ h² = 2·h² - 18·h + 53

∴ 2·h² - 18·h + 53 = h²

h² - 18·h + 53 = 0

53 is a prime number, therefore, by the quadratic formula, we have;

h = (18 ± √((-18)² - 4×1×53))/(2 × 1)

h = 9 + 2·√7 cm ≈ 14.29 cm or h = 9 - 2·√7 ≈ 3.71

However, given that one of the side is 7 cm shorter than the hypotenuse, for all the sides to remain positive, we have h = 9 + 2·√7 cm ≈ 14.29 cm , because for h ≈ 3.71 cm, we have;

The length of the other side = (h - 7) cm ≈ (3.71 - 7) cm ≈ -3.29 cm which is not possible for a real triangle

Therefore, the length of the hypotenuse side, h = 9 + 2·√7 cm ≈ 14.29 cm.

5 0
2 years ago
Translate the figure 7 units right and 6 units down
ahrayia [7]

Answer:

If you would please attach a figure to the question I might be able to answer it.

Step-by-step explanation:

6 0
2 years ago
Let a=2 and b=1, find the value of 2a + 3b
motikmotik

Answer:

7 is a answer

Step-by-step explanation:

2a+3b

2×2+3×1

4+3

7

hope it helps....

3 0
3 years ago
Read 2 more answers
Amanda's penny bank is 2/3 full.
Annette [7]

Answer:

450 pennies

Step-by-step explanation:

2/3 ➡ 3/3 × 2/3 = 6/9

let's call it 9x

the bank contains 6x after she removes 100 pennies 4x is left

which means 2x = 100 pennies and x = 50 pennies

therefore the bank can carry 50 × 9 = 450 pennies

8 0
3 years ago
Other questions:
  • What is 16.666666667 rounded to the nearest tenth
    8·2 answers
  • The graph of the function B is shown below. If B(x) = -1, then what is x?
    7·1 answer
  • PLEASE ANSWER i WILL PUT MOST BRAINLIEST!
    10·1 answer
  • Can someone please answer this
    10·1 answer
  • Use the drop-down menus and the image to complete these statements about prokaryotes. Prokaryotes a nucleus surrounding their ch
    15·2 answers
  • ( p • 1) • 6 = ? halp
    13·1 answer
  • 1. Una empresa pagó S/. 72 180 por un lote de 36 laptops y S/. 101 220 por un lote de 84 impresoras. ¿Cuál es el precio por unid
    14·1 answer
  • PLEASE HELP ME
    14·2 answers
  • Label each statement as True or False.
    5·2 answers
  • I NEED HELP!!! PLS DUE TODAY!!!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!