Questions in mathematics

Questions in mathematics

[Done] The radius of the Earth's orbit is 150,000,000,000 meters. What is this number in scientific notation?

[Done] Solve the system of equations by elimination using multiplication: \[0.4x + 0.5y = 2.5\] \[1.2x - 3.5y = 2.5\]

[Done] Best Method Using System of Equations \[ \begin{align} x &= 4y + 8 \\ 2x - 8y &= -3 \end{align} \]

[Done] Montel sold 13 popcorn buckets and 13 fruit baskets for a fundraiser. The fruit baskets cost $20.75 each. If Montel raised a total of $468.00, how much did each popcorn bucket cost?

[Done] The Rogers family drove a total of 482 miles, starting on Friday and ending on Sunday. They drove 138 miles on Friday and 225 miles on Saturday. How many miles did they drive on Sunday?

[Done] What is the lateral area of the rectangular prism? Assume the prism is resting on its base.

[Done] Simplify the following expression: \[ \frac{14}{20} - \frac{3}{5} \]

[Done] Which number is bigger: [tex]2 \frac{7}{8}[/tex] or [tex]2.79[/tex]?

[Done] Solving Trigonometric Equations: \[ \csc^2x - 2\cot^2x = 0 \]

[Done] Simplify the following expression: \[ (3 \times 10^4) + (2 \times 10^2) + (4 \times 10) \]