Mathematics, 25.02.2021 02:00 maciemessing2

If you add 3 to my number, divide by 4, and then multiply by -1, the result is -2. What's my number?

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 17:10

Empty box + box + empty box fill in the box is equal to 30 how

Answers: 2

Answer

Mathematics, 21.06.2019 18:00

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Answers: 1

Answer

Mathematics, 21.06.2019 18:30

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

Answers: 2

Answer

Mathematics, 21.06.2019 21:00

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.