Use mental math to estimate the unknown number 4210 divided by 6

Raj tried to solve the system below. 9x-y=15 2x+8y=28 Raj's Work 9x - y = 15 2x + 8y (15 + 9x) = 28 9 (-46/37) - y = 15 -y = 15 - 9x 2x + 120 + 72x = 28 - 414/37 - y = 15 y = - 15 + 9x 74x + 120 = 28 y = 969/37 74x = - 92 x =

A certain galaxy is known to comprise approximately 4 x 1011 stars. Of every 50 million of these stars, one is larger in mass than our sun. Approximately how many stars in this galaxy are larger than the sun?

You have 20 quarters. You find 40% more quarters in your room. Then you go shopping and spend 50% of the total number of quarters. a. Write an expression that represents the total number of quarters you take with you when you go shopping. b.

There are 18 students in Mrs. Lynn's first grade class. Eight of her students are boys. What is the ratio of girls to boys?

Nestor is saving money to buy a new camping tent each week he doubles the amount he saved the previous week if he saves a dollar the first week how much money will Nestor save in 7 weeks?

Bryce drove 200 miles to his grandparents house this is 50 miles more than three times the distance to Aunt Lance a house what is the distance to hisaunt lance house?

Seven times a certain number is 266. What is the number?

Write a variable expression that represents how much you will be paid if you work x hours at your selected rate. So, can you write an expression for Hourly rate: 35.00

Given the equation f (x) = 2x² + 4x - 1, what is axis of symmetry? a. 1 c. - 1 b. 2 d. 0

The basketball player is 15 feet away from the goal. The goal is 10 feet high. What is the distance between the player and the basket?