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miv72 [106K]
2 years ago
9

Highest common factor of 15 and 20

Mathematics
2 answers:
Vikki [24]2 years ago
7 0

Answer:

The highest common factor is 5

Step-by-step explanation:

3x5=15  4x5=20

adoni [48]2 years ago
5 0

Answer:

answer is 5

Step-by-step explanation:

See image below, This is a good website  called Cue math explaining.  

https://www.cuemath.com/questions/gcf-of-15-and-20/

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A collection of nickels and quarters is worth 2.85 . There are 3 more nickels than quarters how many nickels and quarters are th
Zolol [24]

A nickel is equal to 5 cents or 0.05 dollars.

A quarter is equal to 25 cents or 0.25 dollars.

Let number of nickels be = n

Let number of quarters be = q

0.05n+0.25q=2.85    ...........(1)

As it is given, there are 3 more nickels than quarters so equation becomes,

n=q+3   ................(2)

Plug in the value of 'n' from (2) in (1)

0.05(q+3)+0.25q=2.85

= 0.05q+0.15+0.25q=2.85

0.30q=2.70

q=9

As n=q+3 we get, n=9+3=12

Hence, there are 12 nickels and 9 quarters.

3 0
3 years ago
PLEASE HELP!!!!!!!!!!!!
liq [111]

9514 1404 393

Answer:

  a  Plane FGI

Step-by-step explanation:

A plane is named either by its designator (Q) or by three non-collinear points in the plane. Here, the point I must be used, as the other designated points in the plane are all on the same line. The appropriate choice is ...

  Plane FGI

4 0
2 years ago
[20 points] -x + 4 = 9
sveta [45]

Answer: x = -5

Step-by-step explanation:

-x + 4 = 9

     -4   -4

-x = 5

divide by -1 on both sides

x = -5

4 0
2 years ago
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Who built Cape Coast Castle ​
lana [24]

Answer:

Swedish Africa Company

4 0
2 years ago
Help Im having a graded test and need help asap ​
Yakvenalex [24]

Answer:

C = 3.14d

Step-by-step explanation:

From the table,

6.28÷2=3.14

9.42÷3=3.14

15.7÷5=3.14

31.4÷10=3.14

7 0
3 years ago
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