Questions in mathematics

Questions in mathematics

[Answered] I am a number between 500 and 600. My ones digit is 5. My tens digit is the difference between my ones and hundreds digits. Who am I?

[Answered] Anne has 24 more cards than Devi. Anne finds that \(\frac{3}{5}\) of Devi's cards are equal to \(\frac{1}{2}\) of her cards. How many cards does Anne have?

[Answered] Ned weighs 1.5 times as much as Jill, and Tom weighs 15 kilograms more than Jill. If their combined weight is 190 kilograms, how much does each person weigh?

[Answered] 2 m³ of soil containing 35% sand was mixed into 6 m³ of soil containing 15% sand. What is the sand content of the mixture?

[Answered] What is \(\frac{32}{48}\) simplified?

[Answered] One number is 6 more than another. Their product is 520. Find the numbers.

[Answered] A population decreases from 404 million to 288 million. Which of the following is the percent decrease of the population?

[Answered] A store mixes red fescue worth $12 per pound and chewings fescue worth $16 per pound. The mixture is to sell for $15 per pound. How much of each should be used to make a 552-pound mixture?

[Answered] The coordinates of the vertices of triangle RST are R(-3, 5), S(4, 5), and T(4, -2). Find the side lengths to the nearest hundredth and the angle measures to the nearest degree.

[Answered] The coordinates of the vertices of triangle PQR are P(-3, 3), Q(2, 3), and R(-3, -4). Find the side lengths to the nearest hundredth and the angle measures to the nearest degree.