Answer:
x = 3
y = 2
Step-by-step explanation:
3x + 2y = 12
-2x + 3y = 5 to find the solution we will use elimination method and for that, multiply second equation with 3 and the first equation with 2
<em>2 * 3x + 2y = 12</em>
<em>6x + 4y = 24</em>
<u>3 * -2x + 3y = 5</u>
<u>-6x + 9y = 15</u> now find the sum of both equation:
<em>6x + 4y </em><u>-6x + 9y</u> = 24 + 15 add like terms
13y = 39 divide both sides by 13
y = 3 now that we found the value of y we can use this to calculate the value of x
3x + 2y = 12 replace y with 3
3x + 2*2 = 12
3x + 4 = 12 subtract 4 from both sides
3x = 9 divide both sides by 3
x = 3
Answer:
The friend's claim is not correct
Step-by-step explanation:
we know that
If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal yo -1)
Example
A given line has a slope of 
---> (is less than 1)
the slope of the line perpendicular to the given line is equal to
substitute
so
the perpendicular line don't have a positive slope
therefore
The friend's claim is not correct
Answer:
2 5/8
Step-by-step explanation:
1 6/8 + 7/8 = 1 13/8 = 2 5/8.
Answer:
The Answer is D : In triangle EFG△ , if EH=HF and EI=IG , then HI= 1/2 FG
FGH, I, equals, start fraction, 1, divided by, 2, end fraction, F, G.
Step-by-step explanation:
I Saw on Khan Academy
Answer:
Amount of sales tax = $3.51
Step-by-step explanation:
$13.50 x 4 = $54
convert 6.5% to 0.065 ===> 6.5/100 = 0.065
$54 x 0.065 = $3.51
