the product of 5 times a number and nine the difference of ripe times a number and five the sum of five times a number and five the difference of five times a number and nine
You are watching: Which phrase represents the algebraic expression 5x - 9?
Five time a number" is composed as 5x. This is due to the fact that the number itself is unknown, therefore we usage a variable.
"Difference" means subtraction; hence "The difference of five times a number and 9" would certainly be 5x-9.
Cone w has a radius that 8 cm and a elevation of 5 cm. Square pyramid x has actually the very same base area and also height as cone w. Paul and also manuel i dont agree on how the quantities of cone w and square pyramid x space related. Examine their arguments. I m sorry statement describes whose argument is correct and also why? paul manuel the volume of square pyramid x is same to the volume that cone w. This deserve to be proven by recognize the basic area and also volume of cone w, along with the volume of square pyramid x. The base area of cone w is π(r2) = π(82) = 200.96 cm2. The volume of cone w is one third(area the base)(h) = one 3rd third(200.96)(5) = 334.93 cm3. The volume the square pyramid x is one third(area that base)(h) = one third(200.96)(5) = 334.93 cm3. The volume of square pyramid x is three times the volume the cone w. This have the right to be proven by finding the basic area and volume of cone w, along with the volume the square pyramid x. The basic area that cone w is π(r2) = π(82) = 200.96 cm2. The volume the cone w is one third(area of base)(h) = one third(200.96)(5) = 334.93 cm3. The volume the square pyramid x is (area the base)(h) = (200.96)(5) = 1,004.8 cm3. Paul"s argument is correct; manuel supplied the untrue formula to find the volume the square pyramid x. Paul"s dispute is correct; manuel provided the incorrect basic area to discover the volume the square pyramid x. Manuel"s argument is correct; paul provided the not correct formula to discover the volume the square pyramid x. Manuel"s dispute is correct; paul offered the incorrect basic area to uncover the volume that square pyramid x.
Mathematics, 21.06.2019 20:00
Consider the collection of every four-digit confident integers less than 2000 whose digits have a amount of 24. What is the average of this collection of integers?
Mathematics, 21.06.2019 22:00
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Finn and his workout partner are lifting weights together, doing countless sets of each exercise. On a particular exercise, finn is utilizing a 16-pound bar, enhancing the amount of weight he lifts by 13 pounds on every set. His partner, meanwhile, began out using a 39-pound bar and also is upping the weight by including 12 pounds ~ above every set. Eventually, finn and also his workout partner will it is in lifting the exact same amount, and will take transforms using the very same barbell. How much weight will they be lifting then? how many sets will they have actually completed?