Answer:
x=4 and y=1
Step-by-step explanation:
4x-y=15
2x+y=9
6x=24
x=24/6
x=4
4x-y=15
4(4)-y=15
16-y=15
-y=15-16
-y=-1 Divide both sides by -1
y=1
<h2>
Answer:</h2><h2>8e+13 or 80,000,000,000,000</h2><h2 /><h2>
Hope this helps!!</h2>
Answer:
positive, its above 0
Step-by-step explanation:
To find value of <em>x</em> we can use the sine angle function. From definition and basics of trigonometry we know that,

In this case our opposite is <em>x</em> and our hypotenuse is <em>15m</em><em> </em>and our angle
is <em>35°.</em>
Therefore,

If we solve for <em>x</em>,

Hope this helps.
<u>r3t40</u>
Answer:
A and B are correct
Step-by-step explanation:
if x:y is 1:3 then x is 1 and y is 3
1/3 of 3 is 1 so A is correct
3/4(1+3) is 3 so B is correct
But
1/4 × 3 is not 1 so C is not correct
3/4 ×1 is not 3 so D isn't correct