Questions in mathematics

Questions in mathematics

[Done] Please help me solve the system of equations: 1. \(3x + 10y = 48\) 2. \(7x + 4y = 54\)

[Done] 1. Grace and Allie are going to meet at the fountain near their houses. They both leave their houses at the same time. Allie passes Grace's house on her way to the fountain. - Allie's walking rate is 2 meters per second. - Grace's walking rate is 1.5 meters per second. A. How many seconds will it take Allie to reach the fountain? B. Suppose Grace's house is 90 meters from the fountain. Who will reach the fountain first, Allie or Grace? Explain why.

[Done] A man exchanged a dollar bill for change and received 7 coins, none of which were half dollars. How many of these coins were dimes?

[Done] To make curtains for a living room window for a customer, you will need three pieces of fabric in the following lengths: 3 feet, 3 feet, and 5 feet. What is the total length of fabric you will need?

[Done] Which expression is equivalent to cos 150°? A. cos 30° B. cos 330° C. cos (-30°) D. cos (-210°)

[Done] What is the correct word form of 3.051?

[Done] A bowling ball travels at 2.0 m/s and has 16 J of kinetic energy. What is the mass of the bowling ball in kilograms?

[Done] What is the potential energy of a 35 kg child sitting at the top of a slide that is 3.5 m above the ground? What is her kinetic energy if she moves down the slide at a speed of 5.0 m/s?

[Done] A swimming pool had a list price of $575.25 and was on sale for 10% off. Sara had a coupon for an extra $75 off. What will her cost be before tax?

[Done] If you are making $7.25 per hour and work 40 hours a week for 5 days, how much would you get paid every two weeks?