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
mina [271]
2 years ago
7

What is the greatest common factor of 15 and 21?​

Mathematics
2 answers:
Fudgin [204]2 years ago
6 0

Answer:

3

Step-by-step explanation:

PIT_PIT [208]2 years ago
3 0
Greatest common factor (GCF) of 15 and 21 is 3. We will now calculate the prime factors of 15 and 21, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15 and 21.
You might be interested in
What is the quotient of this division problem 2218 divided by 14
kkurt [141]

Answer:

158.428571429

158 remainder 6

Step-by-step explanation:

5 0
2 years ago
On Tuesday at lunchtime, it was 29 degrees Celsius. By sunset, the temperature had dropped to 16 degrees Celsius. Please write a
ss7ja [257]

Answer:

Expression is; 29 - x = 16

I've attached an image showing the number line

Step-by-step explanation:

We are told that at lunchtime, it was 29 degrees Celsius and that by sunset, the temperature had dropped to 16 degrees Celsius.

Let the drop be x.

Thus;

29 - x = 16

I've attached an image showing the number line

6 0
2 years ago
The science teacher has a 1. 200 scale model of the space shuttle
bezimeni [28]

I have no clue actually this is weird

5 0
2 years ago
Height of window 0.6 feet less than 2.5 times it width height of window 4.9 feet
AURORKA [14]
Suggest you use some punctuation here:  "The h<span>eight of window is 0.6 feet less than 2.5 times it width.  The height of window  is 4.9 feet.  Find the width of the window."

height of window = 4.9 feet = 2.5(width) - 0.6 feet.

simplify this equation by adding 0.6 feet to both sides of the equation:

4.9 feet + 0.6 feet = 2.5 (width); find width:

5.5 feet = 2.5 (width)

Dividing both sides of this equation by 2.5 will result in an equation for the width of the window, in feet.</span>
8 0
2 years ago
Read 2 more answers
Marc is looking at the plans for his new garage. the length of the garage is 8 metres. the scale on the drawing is 1:50. what wi
evablogger [386]
The answer is 16 cm (or 0.16 m).

The scale is the ratio of the model to the real thing.
So, in the scale 1:50, the model is 1, while the real thing is 50.
Now, just make a proportion:
the model : the real thing = the model dimension : the real thing dimension
        1         :          50         =                   x                 :                    8m

From here:
x = 8m * 1 / 50 = 0.16 m = 0.16 * 100 cm = 16 cm.
4 0
3 years ago
Other questions:
  • In a certain state, license plates consist of three letters followed by three numbers.
    7·1 answer
  • How many solutions does this quadratic equation have ? y=x^2-8x-20
    10·1 answer
  • :))) help por favor
    9·1 answer
  • Best Cam'ron 3 miles and 25.8 minutes how long does it take her to run 1 mile
    12·1 answer
  • An equation for the line that has a slope of 1/2 and passes through the point (-2,5)
    9·1 answer
  • WHAT IS ANOTHER WAY TO EXPRESS 52+24
    7·1 answer
  • What is the common difference of the sequence?
    15·1 answer
  • Mr Hamar had rupees 4,400 hie purchase 6 kg of rice at Rupess 75 for KG ,2 packets of oil at rupees 125 per packet and he gave r
    14·1 answer
  • HELP!!! MARKING BRANLIEST!!!! MATH SUCKS!!!!!
    9·2 answers
  • If A=(0,0) and B=9(2,5), what is the approximate length of AB
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!