Answer:
v = 1
Step-by-step explanation:
volume of a cube = side cubed
1 cubed = 1
Answer:
<em>The metalworker should use 60 kg of metal alloy that is 70% copper and 40 kg of metal alloy that is 20% copper.</em>
Step-by-step explanation:
<u>System of Equations
</u>
Let's call
x=amount of metal alloy that is 20% copper
y=amount of metal alloy that is 70% copper
The metalworker wants to create 100 Kg of 50% copper alloy. This gives us the first relation
x+y=100
The combination of 20% of x and 70% of y will produce 50% of the sum of both, thus
20x+70y=50(x+y)
Operating
20x+70y=50x+50y
Reducing and dividing by 10
2y=3x
The system of equations is easily solved by isolating x in the first equation
x=100-y
And replacing into the last equation
2y=3(100-y)
Operating
2y=300-3y
5y=300
y=60
Thus
x=100-60=40
The metalworker should use 60 kg of metal alloy that is 70% copper and 40 kg of metal alloy that is 20% copper.
Answer: Rational Numbers
Step-by-step explanation: A rational number is any number that can be written as a fraction therefore 23 and .45 would be considered rational numbers.
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Answer:
Cash remaining in the petty cash box = 20.99 dollars
Explanation:
Given that,
Petty cash has a balance of = 73.28 dollars
Total receipt = 52.29 dollars
We need to find the remaining petty cash .
In order to find out the remaining cash, we will subtract total receipt from Petty cash balance.
Cash remain = Petty cash balance - total receipt
Cash remain = $73.28 - $52.29
Cash remain = 20.99 dollars
That's the final answer.
I hope it will help you.
