Questions in mathematics

Questions in mathematics

[Done] The area of a circle with a diameter of 200 mm is approximately how many times greater than the area of a circle with a diameter of 40 mm?

[Done] What is the answer to this equation? \[ 50 \times 6 - ? = 265 \] Is the missing value 35?

[Done] Courier charges for packages to a certain destination are 65 cents for the first 250 grams and 10 cents for each additional 100 grams or part thereof. What could be the weight in grams of a package for which the charge is $1.55?

[Done] What is the ratio of 1.12 when converted into a fraction in simplest form?

[Done] I am so confused on functions! Please help!

[Done] Determine the equation in the form \( y = mx + b \) for the line passing through each pair of points: (0, 8) and (4, 3).

[Done] How do I solve this complex multi-step equation: \[ 2x + (-2) = 10x - 4 \]?

[Done] I have been stuck on this question and would like to know how to solve it. A mother horse and a baby horse walk 10 miles from point A to point B. The mother’s speed is 10 miles per hour, and the baby’s speed is 5 miles per hour. The mother rests for 2 minutes after every \( x \) minutes of walking. The baby keeps walking. They arrive together at the destination. Find the range of \( x \).

[Done] How do you solve \((2x + y) \times (y + 4x)\)?

[Done] What are \(\frac{2}{3}\) of 800?