Answer:
750 grams of 60% alloy
Step-by-step explanation:
Define x = amount of 60% alloy and y = amount of 20% alloy
Equating the amounts of gold:
0.6x+0.2y = 1000(0.5)
Since there must be 1000 grams total:
x+y = 1000
Writing the 2 resulting equations together:
0.6x + 0.2y = 500
x + y = 1000
Multiply the first equation by 5:
3x + y = 2500
x + y = 1000
Subtracting the 2nd equation from the 1st:
2x = 1500
x = 750
Answer: 750 grams of 60% alloy
Answer:
Domain is your x max and Min, Range is your y max and Min
Step-by-step explanation:
Domain would be -5 to 8 or (-5,8)
range would be -3 to 2 or (-3,2)
Answer:
sorry I don't know the answer
Step-by-step explanation:
i will get some points that's why sorry
Answer:
Step-by-step explanation:
10% of 50 = 5
5% of 50 = 2.5
to get to 65 u do 5+5 = 10 so so far that is 20% but 20% only gets u to 60 so u add another 10% to reach 65
u have used 30% so the answer to yr question is 30%
<h2>
<em>does this help comment if / if not </em></h2>
112 m³
the solid is a rectangular pyramid with volume (V)
V = 
× area of base × height = × (8 × 4.2 ) × 10 = 112 m³
