Questions in mathematics

Questions in mathematics

[Done] A chef uses 3 3/4 pounds of semolina flour and 1 5/8 pounds of whole wheat flour for each batch of pasta she makes. One week, she uses a total of 86 pounds of flour. WRITE AN EQUATION:

[Done] Maren walks \(\frac{3}{5}\) miles in 24 minutes at a steady pace. How long does it take her to walk 2 miles?

[Done] What is \( b \) in the equation \( 7b \div 12 = 4.2 \)?

[Done] A musical instrument depreciates by 20% of its value each year. What is the value, after 2 years, of a piano purchased new for $1200?

[Done] If the ratio of the area of circle A to the area of circle B is 2:1, then how many times larger is the circumference of circle A than the circumference of circle B?

[Done] Solve the system of equations: \[ \begin{align} 0.6x - 0.3y &= -1.5 \\ 0.04x - 0.02y &= -0.1 \end{align} \]

[Done] Optimization: Of all rectangles with a perimeter of 10, which one has the maximum area? (Give the dimensions.)

[Done] What comes next? 1, 2, 6, 14, ...

[Done] How do you figure out how many 1/4 inches are in 1 inch?

[Done] What is [tex]$0.00000008$[/tex] in scientific notation?