A builder estimate he needs 1600 nails for a job he is doing. The nails are sold in boxes of 100. How many boxes he needs

What is the scale if 3cm on the map correspond to 120km in the actual distance

Maric who is 5 feet tall told his dad that he could tell his dads hight just by measuring his dads shadow. mark know that his own shadow was 8 feet and his dads shadow measured 10 feet. how tall was his dad

Fractions: rules for adding neg & pos fractions 1/125-1/250 = this confuses me?

The results of a national survey showed that on average, adults sleep 6.9 hours per night. Suppose that the standard deviation is 1.2 hours. a. Use Chebyshev's theorem to calculate the percentage of individuals who sleep between 4.5 and 9.3 hours. b.

A 12-sided die is rolled. The set of equally likely outcomes is {1,2,3,4,5,6,7,8,9,10,11,12). Find the probability of rolling a number less than 4. The probability of rolling a number less than 4

Ella's geometry teacher asked each student to devise a problem and write out its solution. Here is Ella's work: A triangle has side lengths of 10, 11, and 15.

Name another fraction that is equivalent to 4/7

Ellen had 2,080 legos, but she lost 17 legos. How many legos does she have now

Homer has 24 more marbles than lisa. lisa has 105 more than bart. if the three of them have 324 marbles in total, how many marbles does each of them have?

Angelica solves the system { x + y = - 3. x - y = 1 } and finds the solution (1, 3). Use substitution to explain whether Angelica's solution is correct.