caili09 caili09

Today at 4:27 AM
Mathematics

Answered

Eduardo solved the following inequality, and his work is shown below:

−5(x + 4) + 21 ≥ −3 + 4(x − 8)
−5x − 20 + 21 ≥ −3 + 4x − 32
−5x + 1 ≥ 4x − 35
−9x ≥ −36
x ≥ 4

What mistake did Eduardo make in solving the inequality?

Answer :

LeoGreen LeoGreen

Today at 4:31 AM

Answer:

When dividing by −9, he did not change the ≥ to ≤.

Step-by-step explanation:

Answer Link

Other Questions

what is the difference between participles and gerunds

6. Solve the system of equations by graphing. 17. y = -x + 7 5x + 5y = 10

What is the difference between the surface area and volume of a sphere?

singular form of los libros

what is $14 divided by 10%

formula 18/5=what will be the output

veryfy weather the following are zeor of the polinomials p(x)=5x-pi,x=4/5

You have always been proud of being a citizen of the country which shows love and care for elders. However, now this value is found to be disappearing. Write a

If you had the World's attention for 30 seconds, what would you say???

13. A and B can do a job in 6 days, B and C in 9 days, and A and C in 12 days. How much timewill they take to complete the job if they all work together? How lo

The zeros of a function are the values of x for which the function is equal to zero. Enter a number in each blank to make trued statements about the function m(

Postadolescent socialization for adults in the United States typically begins with which agent of socialization?

We give your body support and structure . We also protects your delicate orgains , like your brain, liver,and lungs. We are filled with a substance called marro

Ruth has 7 more brown pencils than blue pencils, and 11 more blue pencils than red pencils. She has 5 red pencils. How many brown, blue, and red pencils does Ru

"A bottle of olive oil contains 1.4 qt of olive oil. What is that volume in milliliters?"

Pain due to decreased blood flow during exercise (often in the legs) is caused

A(n) in blood CO2 will cause a(n) in blood pH. This leads to a(n) in breathing rates. A. increase; increase; increase B. decrease; decrease; decrease C. increas

Describe why Bartholow and Heinz's word association study on alcohol and thoughts of aggression was a factorial design.

"How do security innovations fit into the relationship between Palo Alto Networks and its channels and distributors?"

One way to protect yourself on auction sites is . A. Use a separate credit card with a low limit B. Bid late in the process C. Bid early in the process D. Use c