Given :
Mo spends £15 on ingredients to make 40 cookies.
He sells all 40 cookies for 50p each.
To Find :
The Mo's percentage profit.
Solution :
We know, 1 £ = 66.09 p.
So, total income is :
T = 40 × 50 p
T = 2000 p
T = £2000/66.09
T = £30.26
So, total profit is, P = £( 30.26 - 15 ) = £15.26 .
Hence, this is the required solution.
Answer:
We want to estimate:
We can rewrite this as:
And √2 is a notable value, we know that:
√2 ≈ 1.41
Then:
then:
is a really good estimation.
if instead:
"the square root of eight divided by two to the second power"
refers to:
is easier, we just can replace 2^2 = 4, then we get:
Is also a really good aproximation.
From the given information it is clear that the amount of time, or in other words the number of hours, , required to wash number of cars are related such that more the number of cars then more is the number of hours to wash those cars.
Thus, we have a relationship between and as:
.................(relationship 1)
Now, we know that the number of hours is inversely proportional to the number of students. Thus we have:
.................(relationship 2)
Thus combining the two relationships, (relationship 1) and (relationship 2), we get:
This is the complete relationship between all the three variables involved.
This can be converted into an equation by replacing the proportionality sign by the equal to sign and constant of proportionality (say ) as:
Answer:
The correct expression is
The value when is
Step-by-step explanation:
Let
x------> a number
we know that
The algebraic expression of “two less than the quotient of a number cubed and sixteen, increased by eight” is equal to
For
Substitute the value of n in the expression
so
The value when is