Sam took his family to the zoo. An adult’s ticket is two timesthe cost of a child’s ticket. The total cost for two adults’ tickets and three children’s tickets was $28. How much do the tickets cost?
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cost of child ticket = x cost of adult ticket = 2x 2(2x) + 3(x) = 28 4x + 3x = 28 7x = 28 x = 28/7 x = 4 Child ticket cost 4 Adult ticket cost 8
How can I make this a perfect square w^2-4w+
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ax^2+bx+c if a=1, then take 1/2 of b and square it
w^2-4w+c b=-4 -4/2=-2, (-2)^2=4 add that w^2-4w+4 (w-2)(w-2) (w-2)^2
Calculate the length of the circumference of a circle with diameter of 7cm (1dp)
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22.0. diameter times pie to get your answer then round to 1dp
An expression that is equivalent to 7/8
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6/8+1/8 equals to seven eighth. Don't forget to choose my answer as the brainiest one if it was useful. Thanks
Divide 132kg in a ratio of 3:3:5
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You have to add 3+3+5. It equals 11. Then divide 132 by 11. It equals 12. Then you have to put it into the ratio, so you multiply each number by 12. So the ratio is 36:36:60