We know that the smaller base is x cm, the greater base is x+4 cm, and that the height is x/2 cm.
Since the area of a trapezium is given by
If we plug the expressions we have
If this must equal 84, we can solve for x as follows: start with
Multiply both sides by 4:
Subtract 336 from both sides:
We can divide both sides by 2 to make computation simpler:
Use the quadratic formula (or any mean you prefer) to solve this equation and get the solutions
We can't accept the negative solution, because it would imply
and we can't have negative side lengths. So, the answer is 12.
Answer:
a^2+B^2=c^2
Step-by-step explanation:
Answer:
F:53cm by 102cm
Step-by-step explanation:
The perimeter of a rectangle can be seen as 2l + 2w, with the length being l, and the width being d. If the ratio is 3:2, then 3+2= 5 parts would be the sum of the length and the width, This is half of the perimeter 2(l+w), so 510÷2 = 255. One part would be 255÷5=51.
If you put it into the ratio, effectively it is:
Length:Width
3×51:2×51
153 :102
Therefore the dimensions are 153cm by 102cm, which is F.
Answer:
3/2
Step-by-step explanation:
There are a lot of fractions that equal 1.5, but if you're asking for the most simplified fraction, 3/2 is the answer.
Answer:
The estimated amount to be paid by ronaldo is $5.9895
Step-by-step explanation:
total amount spent on arcade = $18.15
percentage bill to be paid by ronaldo= 33%
To calculate the amount to be paid by ronaldo formula for percentage will be used
Formula which will be used is
Amount to be paid = (Percentage of ronaldo x Total amount spent)/ 100%
Amount to be paid by ronaldo is = 
= 
= 5.9895
So the estimated amount to be paid by ronaldo is $5.9895
Keywords: Calculation of percentage
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