KatTheMuffin KatTheMuffin

14-08-2017
Mathematics

contestada

Seven times the difference of 9 and a number amounts to 84. Find the number.

Respuesta :

koziadam koziadam

14-08-2017

7 * (n-9) = 84
7n - 63 = 84
7n = 147
/n /n
n = 21

Therefore the number is 21.

Proof:

7 * (21-9) = 84
7 * 12 = 84
84 = 84

Answer Link

Otras preguntas

The change of state from liquid to gas is called

What often motivates the hero in Greek myths? A. a need to defeat the gods B. a desire to prove his or her worth C. the fear of the unknown D. the promise of mo

What is the area of the polygon? A. 136.5 in2 B. 168 in2 C. 172.5 in2 D. 240 in2

What is the area of the figure? A. 192 square centimeters B. 108 square centimeters C. 102 square centimeters D. 42 square centimeters

3 hours and 45 minutes as a fraction

What did King Henry VIII do when he wanted to divorce his wife? a. He gave land to the Church in return for his divorce. b. He convinced Parliament to start a n

what is the percent for 10.44?

Find the sequence.. 1,2,2,4,8

Why is it important to ask an event’s participants for feedback on the event? A. It helps project managers pick committee members. B. Feedback is only required

if the side lengths of an equilateral triangle are 5 cm what degrees are the angles