All Questions

Let ABCD be a parallelogram of area \(240cm^2\). E is the midpoint of AD and H is the midpoint of AB. G is a point on BC such that \(BG=2GC\) and F is a point on CD such that \(DF=3FC\). K is a point on AC such that the area of triangle EKF is \(33cm^2\). Find the area, in \(cm^2\), of triangle HKG.

Hôm nay rãnh nên mình quyết định post lên đây vài bài tự tạo của mình :D (các bạn đừng lo,tuy là đề tự tạo nhưng là đề đúng)

What property of is mentioned? “If we change the order of two natural numbers, then their sum stays the same.”

Thank you guys if you answer my ques! 

What property of is mentioned? ''If we change the order of two natural numbers, then their sum stays the same''.

Thank!

In planet Twesmt, 1 year has 10 months, 1 months has 10 weeks, 1 week has 4 days. Different from our Earth, the workers there go to work 2 days a week, and earn 1 GO (an unit of money in that planet) each 5 days working. Know that 1 GO = $10, how many dollars that an person who works often in planet Twesmt (always 2 days each week) earn?

Let # a symbol of changing an number to a word have meaning. Here's how this symbol works:

Ex: 4582 # Love

What can these equations can change to?

[(-19) x (-20)]^2 x \(\sqrt{9}\) x |5| + 22097157 # ?

y # ?, know that: \(\dfrac{\sqrt{y\sqrt{3}}\times y^2}{\sqrt{2}\times y}=\dfrac{\sqrt[4]{12\times y^2}\times y^2}{311030758}\)

If it is too hard, tell me.

Sara bought 2,856 T-shirts for $5,712. She packed the T-shirts into boxes of 12 T-shirts each and sold all of them at $42 for each box. How much money did she make?

Nam's mother was born on February 29, 1980. Nam's mother was born to the South on February 25, 2016. How many years are needed from the day Nam was born (2016) to give Nam many birthdays more than mom?

Car A goes from Ha Noi to Da Nang. Car B go from Da Nang to Ha Noi. The ratio of the speed of car A and car B is 5:4. After 2 cars meet, Car A decrease its speed by 1/5 of its speed, car B increase its speed by 1/5 of its speed. When car A reached Da Nang, car B is 25 km from Ha Noi. What is the distance between Ha Noi and Da Nang?

There are 78 people at the party. Mary give each people a balloon then she need bought at least how many bag of balloon ? ( 1 bag has 16 balloons )