Why do engineers use math

Each runner is carrying an 8 ounce bottle of water. a 2.1 ounce energy bar, and a 3 ounce energy drink. write an expression in simplest form that represents the weight carried by y runner. interpret the expression

according to a recent survey, in 2000, 64% of households had one or more pets. Throughout the next decade, this decreased by approximately 1% per year. if this trend continues, in which year will 30% of households have pets?

Kyle ran 5.4 miles on each of four days this week. He ran 7 miles on the fifth day. How many miles did Kyle run this week?

Which is the better deal? Question 5 options: 1 dozen cookies for $1.25 2 dozen cookies for $2.88 3 dozen cookies for $3.60 5 dozen cookies for $6.60

Aileen wants 2 green marbles. What is the probability she will draw 2 green marbles at random if she replaces the first marble before she draws the second marble? (there is a total of 10 marbles, there are 5 green, 4 blue, and 1 red)

A taxi cab company charges a flat amount of $5.00 plus a rate of $3.00 per mile traveled. Part A: If the total cost of the fare was $41.

The probability that a fair coin tossed 10 tines will land heads up on all ten tosses is 1 out of

The product of two positive numbers is 1,800. One number is twice the other number. The equation to determine the two numbers, with x representing the value of the lesser number, is x (2x) = 1,800. What is the value of the lesser number? 24 30 48 60

Two pony express riders rode equal parts of a 286 mile trip. each rider rode the same number of miles. they changed horses every 13 miles. how many horses did each rider use?

The number of bricks on the bottom row was 21, and each row above it had 2 fewer bricks. If there were 11 rows in the stack of bricks, how many bricks were there altogether?