Questions in mathematics

Questions in mathematics

[Done] An equilateral triangle and a regular pentagon have the same perimeter. Each side of the pentagon is 3 inches shorter than each side of the triangle. What is the perimeter of the triangle?

[Done] Use the distance formula to find the distance between each pair of points. Round to the nearest tenth if necessary. C(-5, -3), D(-4, -2)

[Done] Fran cut her sandwich into 6 pieces. If Fran ate \(\frac{1}{3}\) of her sandwich, how many pieces did she eat?

[Done] Estimate to draw the 1/4 inch marks on the paper strip. Then fill in the blanks below. A whole inch is equal to __________ half inches.

[Done] Year 2 revenue is $5,000,000 at 32%. By what percent would you need to increase your division's Year 2 revenue to reach $3 million in Year 3?

[Done] If \( y - 18 = 14 \), what is the value of \( 3(y + 5) \)?

[Done] Evaluate \( 4r(t - v) \) if \( r = 3 \), \( t = 5 \), and \( v = 2 \).

[Done] What is one-third of 518?

[Done] Solve the system of equations using substitution: 1. \(4x - 4y = -16\) 2. \(x - 2y = -12\)

[Done] The number of girls at the middle school Cyber summer camp was six more than twice the number of boys. The total number of middle school students at the camp was 156. Use the 5-D process to find the number of boys and girls at the camp.