A motorist travelled 300 km

at an average

OF 75 km / h In and returned at an average speed of v km / b. if his average speed for the whole journey is 60km/h, find v?

What is sum of numbers 1 2 3 4 5 6 ... 99 100=

An item is regularly priced at $90. alan bought it on sale for 30% off the regular price. how much did alan pay?

Mindy and Troy combined ate 9 pieces of wedding cake Mindy ate 3 pieces of cake and Troy had one fourth of the total cake write an equation to determine how many pieces of cake see there were in total fi the total number of pieces of cake

A quantity is growing at a constant 3% yearly rate. what would be it's percent growth after 15 years?

Select the correct answer. The standard deviation of a population is known to be 7.8. If the sample size is 85, what is the standard error of the mean? A. 0.22 B. 0.85 c. 1.047 D. 6.008 Reset Next

Does the equation represent a direct variation? If so, find the constant of variation. 2x - 4y = 0 Question 1 options: yes; k = - 1/2 no yes; k = 1/2 yes; k = - 4

If a bag of pennies weighs 5.1 kilograms. Each penny weighs 2.5grams. About how much penny's are in the bag A. 20 B. 200 C. 2,000 D. 20,000

Jack broke apart 5x216 as 5x200+5x16 to multiply mentally. what strategy did jack use

Kim wrote the number 11 use Mental Math to tell what number has 2 more tens than 11

What is the answer to the equation 10+4x=5 (x-6) + 33