Questions in mathematics

Questions in mathematics

[Jawaban] If it takes 4 ounces of insecticide to make \( \frac{5}{2} \) gallons of garden spray, how much spray can be made with 6 ounces of insecticide?

[Jawaban] If 2 cubic feet of sand weigh 90 pounds, how much do 5 cubic feet of sand weigh?

[Jawaban] Which is the better buy: 7 pounds for $8.47 or 9 pounds for $11.07?

[Jawaban] A number cube is rolled, and a coin is tossed. What is the probability that a four is rolled and the coin comes up tails? A. \( \frac{1}{3} \) B. \( \frac{1}{4} \) C. \( \frac{1}{6} \) D. \( \frac{1}{12} \)

[Jawaban] A factory builds 960 cars in 5 days. What is the average number of cars the factory produces per day?

[Jawaban] Water fills a tank at a rate of 150 liters during the first hour, 350 liters during the second hour, 550 liters during the third hour, and so on. Find the number of hours necessary to fill a rectangular tank with dimensions 16 m x 7 m x 7 m.

[Jawaban] Solve the equation: \(-3(10b + 10) + 5(b + 2)\)

[Jawaban] Solve the expression: \[ 13(10b + 10) + 5(b + 2) \]

[Jawaban] Given the equation: \[ a = \frac{1}{3} h (a + 4b + c) \] and the values: \[ a = 20 \] \[ h = 5 \] \[ a = 1 \] \[ c = 1 \] Find the value of \( b \).

[Jawaban] What is the answer to: 85% is 20 of what number?