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Masteriza [31]
3 years ago
13

Two numbers with a sum of 15​

Mathematics
1 answer:
Crank3 years ago
6 0

Answer:

7+8=15

Step-by-step explanation:

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X°,Y° and Z° are three angles lying on a straight line.If X°=2y° and Z°=3y°,find he value of y
maks197457 [2]
Answer:  " y = 30° "  .
_____________________________________
<u>Note</u>:  The sum total of the measure of all angles lying on a straight
             line is 180°.

So;   x + y + z = 180 .

Given:    x =  2y ;
              z  =  3y ;
__________________
Find the value of:  " y " ;
_______________________
Since:   x + y + z = 180 ; 

Substitute:  "2y"  for  "x" ; 
          and:  "3y"  for  "z" ;
_______________________
       2y + y + 3y = 180 ;

                6y = 180 ;
______________________
  Divide EACH SIDE of the equation by "6" ; to isolate "y" on one side of the equation; and to solve for "y" ;
___________________________
       6y/ 6 = 180 / 6 ; 

             y = 30 ;
____________________________
Let us check our work;
____________________________
     2y + y + 3y = 180 ;

Substitute our solved value:  "30" ; for "y" ; in the equation; to see if the equation holds true:
____________________________
  2(30)  +  30  +  3(30)  =?  180 ?
____________________________
   60  +  30  +  90  = ?  180 ?
____________________________
             90  +  90  = ?  180 ?  Yes!
____________________________
7 0
4 years ago
What is 0.9380 to two significant figures please help it's an exam ​
loris [4]

Answer:

0.9.........,..............

4 0
3 years ago
Samantha has $48 to spend on used video games. Single player games cost $6 each and multi player games cost $12 each. What equat
storchak [24]

Answer:

The equation is

6x + 12y = 48

Step-by-step explanation:

Standard form another way of writing a linear equation. It is in the form

Ax + By = C

Total amount with Samantha = $48

Single player games = $6 each

Multi player games = $12 each

Let

Number of Single player games = x

Number of Multi player games = y

The number of single player games (x) and the number of multi player games (y) Samantha can buy is

6x + 12y = 48

That is price × quantity of single player games + price × quantity of multi player games = Total amount with Samantha

3 0
3 years ago
What is the equation in point slope form of the line that passes through the point
zheka24 [161]

Answer:

y - 4 = 5(x + 2)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

here m = 5 and (a, b) = (- 2, 4), hence

y- 4 = 5(x - (- 2) ), that is

y - 4 = 5(x + 2) ← in point- slope form

7 0
4 years ago
Find the value of √64
olga2289 [7]

Answer:

8

Step-by-step explanation:

The square root of 64 is 8.

8 x 8 = 64.

<em>Hope this helps</em>

<em>-Amelia</em>

6 0
4 years ago
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