THE ANSWER IS 464.THE ANSWER IS 464 BECAUSE I ADDED THEM FIRST THEN I GOT MY ANSWER WHICH IS 464!.
By using elimination method the solution for the given equations 5x+6y=17 and -10x-9y= -43 are x=7 and y= -3.
Step-by-step explanation:
The given equations are,
..................................(1)
..............................(2)
Step:1
By elimination method,
Multiplying the equation (1) by 9 ( Eqn (1) × 9)
.................................(3)
Multiplying the equation (2) by -6 ( Eqn (2) × -6)
................................(4)
Step:2
Subtracting the Equations (3) and (4),
( - )
( ) + ( ) = ( )
( ) = ( )
Step:3
Substitute the x=7 in equation (1),
( 5 × 7 ) + ( ) = 17
= -18
= -3
Step:4
Check for solution,
Substitute the x and y values in Eqn (1),
( 5 × 7 ) + ( 6 × -3 ) = 17
( 35 ) - ( 18 ) = 17
17 = 17
Result:
The solution for the equations 5x+6y=17 and -10x-9y= -43 are x=7 and y= -3.
75.50/78.25 = x/100
Using this proportion, finding x will find the percentage out of 100 that 75.50 is of 78.25
75.5*100=78.25x
x= 7550/78.25 = 96.486%
Or you could just do 75.5/78.25 to get the same answer.
Here is your answer:
7. 3×1=3
7×1=7
2. 5×1=5
7×1=7
=5 -2/7
Step one: write the equation
Step two: find the common denommarator (which is 7)
Step three: subtract 3-5= which equals to negative 2
Step four: subtract the whole numbers ( 7 and 2) which gives you five
Your answer is...
5 -2/7
Answer: 353 square inches
Step-by-step explanation: