Answer:
8 mollies
Step-by-step explanation:
22-6=16
16/2=8 mollies
Hey there!
when x = 3 and y = 9
Let's first move to x and y.
Now multiply 5 by x and y(3+9).
Now we have the number 2 left, so we have to multiply 60 by 2.
Hope this helps!
Answer:
8
Step-by-step explanation:
Answer:
????
Step-by-step explanation:
Answer:
6kg pure copper and 30 kg 10% copper was mixed to give 36kg of 25% alloy
Step-by-step explanation:
Here, we want to produce 36 kg of 25% alloy
Let the Pure copper be x kg while 10% alloy be y kg
Pure copper is simply 100% copper
Thus;
x + y = 36 •••••(i)
Then;
100% of x + 10% of y = 25% of 36
= x + 0.1y = 9 •••••• ii)
From i x = 36-y
from ii, x = 9-0.1y
Equate both x
36-y = 9-0.1y
36-9 = 0.1y + y
0.9y = 27
y = 27/0.9
y = 30
x = 36-y
x = 36-30
x = 6 kg
