TR = 6
QR = 2(TR)
QR = 2(6)
QR = 12
Answer:
<em>x = 0 </em>
<em>y = 2</em>
<em>z = -3</em>
Step-by-step explanation:
x-y-2z=4 (1)
-x+2y+z=1 (2)
-x+y-3z=11 (3)
(1) + (3) = x-y-2z + (-x)+y-3z = 4+11
= -5z = 15
-> z = -3
(1) + (2) = x - y - 2z + (-x) + 2y + z = 4+1
= y-z = 5
= y- (-3) = 5
-> y = 2
(1) = x-y-2z = 4
= x - 2 - 2 * (-3) = 4
-> x = 0
Answer:
3.2 calories
Step-by-step explanation:
4% is .04
so
80 x .04 = 3.20
D-7<span>≤ 3
add 7 to both sides
d</span><span>≤10</span>
2 - 8y + 7y = 4
-1y = 2
y = -2
y = -2