maddygabbard2821 maddygabbard2821
  • 16-11-2021
  • Mathematics
contestada

Francesca tried to evaluate an expression. Here is her work: 3(5)2–18÷3 = 3(25)–18÷3 = 75–18÷3 = 57÷3 = 19 Is Francesca's work correct?

Respuesta :

Paounn
Paounn Paounn
  • 16-11-2021

Answer:

Nope. Moltiplication (and thus divisions) has to be done before any addition or subtractions, unless parenthesis indicate otherwise.

[tex]3(5)^2 - 18\div 3 = 3(25) - 6 = 75-6=69[/tex]

Answer Link

Otras preguntas

In the illustration, the structures that project from the cell membrane are ______________ and are used for ______________. A) cilia, locomotion. B) pili, h
Blood alcohol content (bac), is a standard used to:
Find the unknown side length, x. Write your answer in simplest radical form. A. 15 B. 11 square root 2 C. 2 square root 121 D. 15 square root 5
Explain why a recursive rule alone does not define one sequence. (2nd Time Asking! Please Help!!! 25 POINT REWARD FOR A CORRECT ANSWER!)
What kind of mutation causes sickle cell anemia?
Indirect ways of influencing politics is better than the direct ways
Which number is a coefficient in this expression 3x+8
What is an irregularity leading to cancer?
what is the conflict in miss peregrine's home of peculiar children
The stage of meiosis that takes up the most time is Prophase,interphase,metaphase or,telophase