Answer:
We know that:
Energy released by fusion of hydrogen in 1 liter of solution A = 7.6x10^10 J
Energy used daily in a certain family home = 3x10^4 J
(you did not write the units, so i suppose that are the same in both cases)
Then, if x is the number of liters of solution A used, the energy produced will be:
E(x) = x*7.6x10^10 J
And we want this equal to 3x10^4
then:
E(x) = x*7.6x10^10 J = 3x10^4 j
now we solve this for x.
x = (3x10^4 j)/(7.6x10^10 j) = 3.9x10^-7
Then you need to use 3.9x10^-7 L of solution a.
2. get the best price for a good
Answer:
The least of the three integers is 1.
Step-by-step explanation:
Hi there!
Let <em>x</em> be equal to the least of these integers.
Let <em>x</em>+1 and <em>x</em>+2 be the next consecutive integers.
We're given that these integers have a sum os 6.
We can use these to construct an equation:
Combine like terms:
Therefore, the least of these integers is 1.
The other two integers would be 2 and 3.
I hope this helps!
Answer:
10
Step-by-step explanation:
HCF of 20, 40 & 50:
20: 1, 2, 4, 5, 10, 20
40: 1, 2, 4, 5, 8, 10, 20, 40
50: 1, 2, 5, 10, 25, 50
HCF: 10
Topic: HCF and LCM
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