dcyoung234 dcyoung234

22-04-2022
Mathematics

contestada

The product of a number and 7 less than the number is 30. Find the number.

Respuesta :

georgepahno georgepahno

22-04-2022

Answer:

-3 or 10

Step-by-step explanation:

[tex]x(x - 7) = 30[/tex]

[tex] {x}^{2} - 7x = 30[/tex]

[tex] {x}^{2} - 7x - 30 = 0[/tex]

[tex](x - 10)(x + 3) = 0[/tex]

x = -3 or 10

Answer Link

Otras preguntas

Simplify: –3(x – 5) – 8(y + 2) + (–3)(6 – 4b) A. –3x –8y – 12b – 15 B. –3x –8y + 12b + 15 C. –3x –8y + 12b + 20 D. –3x –8y + 12b – 19

When using the technique of direct characterization, authors often use ____ to describe characters

Tony brought 3 packs of pencils for $4 each and a pencil box for $7. Mario bought 4 binders for $6 each and used a coupon for $6 off. Write and evaluate express

How did the receding ice age help with the development of agrarian societies?

A 6 sided die was rolled 9 times. What is the mode of these rolls?

N order to have many groups come together and work towards legislation and controlling government decisions, a _____ must be formed.

The Jews experienced discriminating views, acts, and policies at the hands of the ______ and Christians. Hindus Buddhists Hebrews Muslims

Why were labor unions formed? Were these unions successful? Explain why or why not.

Subtract.Add to check 735,249-575,388

Which factor did not contribute to the popularity of crime novels? The rise of high culture New technologies The affordability of books America’s growing litera