You can use Guess and Check and divide the 50 pounds into 2 parts. Multiply the price for both and do square root for the prices. Then at the 2 square roots and see if they add up to $6.40. If not, then divide the 50 pounds into something else, like 30 and 20 or something like that.
0.9/5=0.18
2.4/12=0.2
so the first one is better
100x5=500
90x5= 450
8x5= 40now add
500+450+40=990
:) hope this helps
185 units hope this helps
Answer:
-V (3 V^23 + 1)
Step-by-step explanation:
Simplify the following:
-3 V^24 - V
Factor -V out of -3 V^24 - V:
Answer: -V (3 V^23 + 1)