# Gracy

Popular questions and responses by Gracy
1. ## statistics

a die is rolled 7 times. find the probability of getting at least one 3.

2. ## Math Analysis -graphical method

a bakery makes both cakes and cookies. each batch of cakes reqire 2 hours in the oven and 3 hours in the decorating room. each batch of cookies need 3/2 hours in the oven and 2/3 of an hour decorating room. the oven is available no more than 15 hours a a

3. ## mathmatical analysis

a loan of 4000 was repaid at the end of 10 months with a check for 4270. what annual rate of intreste was charged.

4. ## Chemistry

reaction between sulfur and oxygen is S+O2 = SO2. how much sulfur is in the original materials, would result in 1000g of so2

5. ## science

A lamp consumers 1000 J of electrical energy is 20 seconds .What is its power?

6. ## science

A sound wave travels at a speed of 340 m/s. If the wave lenght of wave is 1.4 km. What is the frequency of the wave?

7. ## MATH

The decimal 4.25 is between which two integers? A. between -2 and +4 B. between -1 and +3 C. between -1 and +4 D. between -1 and +5

8. ## math analysis

how many faculty of each rank should be hired at each college to exactly meet the demand for sections and completely exhaust the salary budget Rank table. Lecture. Instrutor Section taught. 3. 4 annual salary. 20. 25 (Thousands \$) Table. Community college