Questions in mathematics

Questions in mathematics

[Done] There are 376 stones in three piles. The second pile has 24 more stones than the first. The third pile has twice as many stones as the second. How many stones are in each pile?

[Done] Seb made a jump of two and a half meters. Kirsty's jump was 10 centimeters longer. How long was Kirsty's jump?

[Done] What is the x-coordinate of the point in the standard (x, y) coordinate plane at which the two lines \( y = 2x + 6 \) and \( y = 3x + 4 \) intersect?

[Done] Maria is tossing a fair coin. She tosses the coin ten times and it lands on heads eight times. If Maria tosses the coin an eleventh time, what is the probability that it will land on heads? A) 1/5 B) 1/2 C) 4/5 D) 3/2

[Done] Solve the equation: [tex]81x^2 = 49[/tex].

[Done] Without multiplying, determine which expression has a product greater than 52,678. A) \(\frac{5}{6} \times 52,678\) B) \(\frac{9}{9} \times 52,678\) C) \(\frac{4}{3} \times 52,678\) D) \(\frac{3}{5} \times 52,678\) How can you tell just by looking at it?

[Done] If the midpoint between \((18, y)\) and \((20, -15)\) is \((19, -5)\), find the value of \(y\).

[Done] Geometry The diagonals of a kite are in the ratio of 3:2. The area of the kite is [tex]27 \, \text{cm}^2[/tex]. Find the length of both diagonals. Hint: Let the lengths of the diagonals be [tex]3x[/tex] and [tex]2x[/tex].

[Done] At what point \((x, y)\) do the two lines with equations \(x - 2y = 5\) and \(3x - 5y = 8\) intersect?

[Done] What is the smallest number that both 13 and 7 can divide into?