n < 0, is another way to say "n is negative", so let's check
Answer:
The third angle = 82°
Step-by-step explanation:
The sum of the angles of a spherical triangle is 180°.
Let the unknown and be called x
36 + 62 + x = 180
98 + x = 180
X = 180 - 98
X = 82°
Answer:
x + Y = 39 or x = 39-y
20x + 50y = 1.40
20 (39 - y) + 50y = 11.40
7.80 - 20y + 50y = 11.40
30y = 11.40 - 7.80
30y = 3.60
y = 3.60/30
y = 12 50p coins were collected.
x = 39 - 12 = 27 20p coins were collected.
Proof:
20*27 + 50*12 = 11.40
5.40 + 6 = 11.40
11.40 = 11.40
I hope it helps.
Option( c ) is the correct one.
-2x +y= -3
x= (3+y)/2
By executing the value in second equation
{-(3+y)/2} +2y =3
( -3-y +4y)/2 =3
-3 +3y =6
3y = 9
y = 3
Again by substituting the value of y in any of the equation
-2x +y =-3
-2x =-6
x= 3.
█ Explanation <span>█
Solve for n.
</span>✦
✦ Subtract
from both sides.
✦
✦
Answer: <span>Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia </span>