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Svetlanka [38]
3 years ago
7

The sum of 16 and a number x is equal to 20

Mathematics
2 answers:
Andreyy893 years ago
6 0
The sum of 16 and 4 is equal to 20.
This is how I know:
20-16=4
How do I know this? 
Sum means to <u>add</u>. To get the sum of something that equals another number, you must see what number adds up with 16 to get 20. So, this means that 16+4=20.

Hope this helps. <3 :)
baherus [9]3 years ago
5 0
" the sum " means add

16 + x = 20 <= ur equation
x = 20 - 16
x = 4 <== the number
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Need help ASAP!!!!! I WILL GIVE THE MOST BRAINLIEST TO THE FIRST PERSON THAT ANSWERS
lys-0071 [83]

Answer:

x^2 + 10x + y^2 -4y + -7 = 0

Step-by-step explanation:

For any circle point with coordinate of center (a,b) and radius r

equation of circle is given by

(x-a)^2 + (y-b)^2 = r^2

_______________________________________

Given

coordinate of center =  (-5,2)

radius = 6

thus, equation of circle can be written by substituting a and b with (-5 ,2) and r =6 as shown below

(x-a)^2 + (y-b)^2 = r^2\\(x-(-5))^2 + (y-2)^2 = 6^2\\x^2 + 10x + 25 + y^2 -4y + 4 = 36\\=>x^2 + 10x + y^2 -4y + 29 = 36\\=>x^2 + 10x + y^2 -4y + 29 -36 = 36 -36\\=>x^2 + 10x + y^2 -4y + -7 = 0

Thus, equation of circle is x^2 + 10x + y^2 -4y + -7 = 0

3 0
3 years ago
The donaldson's swimming pool measures 15 metters long 8 meters wide and 3 meters deep how many cubic meters if water will the p
Svetradugi [14.3K]
V=l*w*h

V= 15*8*3

V= 120*3

V= 360

The pool will hold 360 cubic meters.
7 0
4 years ago
Identify as many solutions to the equation below as you can.<br> x + y = 12
harkovskaia [24]

Answer:

infinite

Step-by-step explanation:

because there is an infinite amount of numbers there is an infinite amount of solutions

5 0
3 years ago
Solve the inequality for x: -3(2x+5) &lt; -45
balandron [24]

Answer:

x>5

Step-by-step explanation:

-3(2x+5)<-45

2x+5<-45/-3

2x+5<15

2x<15-5

2x<10

x<10/2

x<5

x>5

7 0
3 years ago
Sorry for asking so much;(
Bingel [31]
Length of line RS is probably 20 because it’s not smaller than the line it’s parallel to but it’s not equal either so the answer has to be c unless there’s a d that’s between 10-20
8 0
3 years ago
Read 2 more answers
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