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
Answer:
The LCD in 1/30 + 1/24 is <u>90</u>.
Rounded to 1 decimal place
Answer:
the shape is semetrical
Step-by-step explanation:
Answer:
550/
1000
Step-by-step explanation:
1/ 0.550.
0.550 x 1000 and 1 x 1000
=
550/
1000
<em>-kiniwih426</em>
