Answer:
<em>To solve system of equation by elimination, check if the values of x or y are lined up and have the same value.</em>
Or if the are not, take the numbers in x or y to multiply. Use the first to multiply the second equation and the second to multiply the first equation
<em>E</em><em>xample is, for the first step which is in italic form is</em>
<em> 2x + 3y =64...equation 1</em>
<em> 2x - 6y = 75...equation 2</em>
you can just eliminate for x by taking away equation 2 from equation 1
Or for step two which is in light form is
4x + 3y =64...equn 1
3x + 7y =80...equn2
to eliminate x, multiply equation 1 by 3 and equation 2 by 4
it will be 12x +12y =192
12x +28y =320
now you can solve.
Thanks
Answer: $48.06
Step-by-step explanation:
Simply take the sales price minus the unit cost, and divide that number by the unit cost. Then, multiply by 100 to determine the markup percentage. For example, if your product costs $50 to make and the selling price is $75, then the markup percentage would be 50%: ( $75 – $50) / $50 = . 50 x 100 = 50%.
6pens cost=20p×6=120p
5pencils cost=12p×5=60p
total =6pens+5pencils
=120p+60p
=180p
⇒1rupee 80p
A) The area of a trapezoid is the product of height and average base length.
.. area = (8 cm)*(12 cm +20 cm)/2 = 128 cm^2
b) The area is half the product of the diagonals.
.. area = (1/2)*(10 in)*(6 in) = 30 in^2
