Answer:
m<HIG and alternate interior angles
HOPE IT HELPS
375L-240L=135L
135÷0.6=81
The pump must work for 81 min or 1hr and 21 min until the tank reaches 240L
-4x + 6y = 24
4x + y = -10
7y = 14
y = 2
2x - 6 = -12
2x = -6
x= -3
C + 3d = 4.10.....multiply by -2
2c + 2d = 4.60
----------------
-2c - 6d = - 8.20 (result of multiplying by -2)
2c + 2d = 4.60
-----------------add
-4d = - 3.60
d = -3.60 / -4
d = 0.90 <==== cost of 1 doughnut
c + 3d = 4.10
c + 3(0.90) = 4.10
c + 2.70 = 4.10
c = 4.10 - 2.70
c = 1.40 <==== cost of 1 coffee
Y²(y² + 19) + 3y - 5 + 8⁰
y²(y²) + y²(19) + 3y - 5 + 1
y⁴ + 19y² + 3y - 4
