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Questions in Grade Middle-school

[Answered] To have batting averages over 0.500, how many hits in 45 times at bat would Raul and Karen need?

[Answered] Jules reads that one pint is equivalent to 0.473 liters. He asks his teacher how many liters there are in a pint. His teacher responds that there are about 0.47 liters in a pint. He asks his parents, and they say there are about 0.5 liters in a pint. Jules says they are both correct. How can that be true? Explain your answer.

[Answered] I am conducting a test to determine if there is a connection between how long you run and how fast your heart beats. I will perform an experiment where a person will run for 1 minute, and I will check their heart rate. Then, they will run for 2 minutes, and I will check their heart rate again. I will continue this up to 6 minutes and analyze if there is a connection. What do you think my hypothesis should be? What are my variables? Independent variable: Dependent variable:

[Answered] What is the scientific notation of 2500?

[Answered] The area of a rectangle is 24,396 square centimeters. If the width is 38 centimeters, what is the length? Please explain, as I don't understand.

[Answered] The baby elephant weighs 435 pounds. What is its weight rounded to the nearest hundred pounds?

[Answered] Charlie runs at a speed of 3 yards per second. About how many miles per hour does Charlie run?

[Answered] How do I solve the equation 6 = \(-\frac{w}{8}\)?

[Answered] Two ways you could evaluate 37% of the sum of \(27 \frac{3}{5}\) and 15.9: 1. Convert the mixed number \(27 \frac{3}{5}\) to an improper fraction or a decimal, then add it to 15.9. Multiply the resulting sum by 0.37 to find 37% of the total. 2. First calculate 37% of each number individually: find 37% of \(27 \frac{3}{5}\) and 37% of 15.9 separately. Then, add the two results to get the final answer.

[Answered] Describe how a physical property, such as mass or texture, can change without causing a change in the substance.