5y+4x
5(10) + 4(-5)
50 - 20
30
Answer:
72
Step-by-step explanation:
By using the fundamental counting principle, we can do 4 x 3 x 6 = 72 to find how many different sandwiches can be made.
Answer:
90 packets
Step-by-step explanation:
Subtract the weight of the box.
33-1.5=31.5
There are 31.5kg of packets.
Convert it to g.
31500g
Divide it by the weight of one packet.
31500/350=90
The box holds 90 packets.
A is INCORRECT because here we have degrowth and growth
B is INCORRECT because the decay factor is 2% or 0.02 , not 0.2
C is CORRECT, the function is which is used to calculated the area of rainforest at time t is given by 1156.25(1 -0.02 )^t
D is INCORRECT, if we plug in t=100 in the above equation , we get = 1156*(1-0.02)^100 = 153 square miles of forest. So it will not be wiped out
E is CORRECT, if we plug in t =35, we get = 1156*(1-0.02)^35 = 570 square miles. So more than half will be cut in 35 years
F is INCORRECT becuase domain goes beyond 100 years as shown by option D
So, correct options are C and E
Answer:
0.75:1
Step-by-step explanation: