Questions in mathematics

Questions in mathematics

[Free] Order from least to greatest: 5.04, 5.4, 5.406, 5.064.

[Free] How can I factor \(27 + 12\)?

[Free] A total of $21,000 is invested in two bonds that pay 4% and 7.5% simple interest. The bond with a 7.5% interest rate earned 6 times as much interest as the bond with a 4% interest rate. 1. How much is invested in each bond? 2. What was the total interest earned?

[Free] Divide 72 rolls into 2 groups so that the ratio is 3 to 5.

[Free] Estimate the product of 51 and 48.

[Free] \( P \) is inversely proportional to \( Q \). When \( P = 100 \), \( Q = 32 \). Calculate the value of \( Q \) when \( P \) is twice as big as \( Q \). Show your working, please.

[Free] Solve the inequality: \[ 2x + 4 \leq 24 \] What is the value of \( x \)?

[Free] A full truck weighed \(3 \frac{2}{6}\) tons. If the truck was only \(\frac{4}{6}\) full, how much would it weigh?

[Free] Can you help me solve the equation \(4(x + 3) = 9x + 16 + 3x\)? Can you provide a walkthrough? Thanks.

[Free] Graph the solution of the equation: \[ 10x + 6y = 100 \]