nemo21
nemo21 nemo21
  • 01-04-2015
  • Mathematics
contestada

70% of a number is 98.

What is 90% of that same number?

A.
63

B.
68.6

C.
88.2

D.
126

Respuesta :

naǫ
naǫ naǫ
  • 01-04-2015
Set up the proportion:
70% - 98
90% - x

[tex]\frac{70\%}{90\%}=\frac{98}{x} \\ \frac{7}{9}=\frac{98}{x} \\ \frac{7}{9}x=98 \\ x=98 \times \frac{9}{7} \\ x=14 \times 9 \\ x=126[/tex]

The answer is D. 126.
Answer Link

Otras preguntas

PLEASE HELP!!!!!! Suppose that after paying for 9 laps, the 10th lap is free. Will the sequence still be arithmetic? Explain. letter b only! thank you :)
What rapper said is in there songs. only answer if you 100% know. NLE the Top Shotta got bombs like Al-Qaeda
what is the natural salt content of the environment in which lactase normally functions?
1. You've just come back from a trip to the Amazon jungle, and your teacher is getting ready to take the same trip. Using usted commands, tell your teacher wher
Give the English meaning for each verb and fill in the blank with the correct form
For this exam review lab exercise, you will develop a program that fixes faulty data in a one-dimensional array of integers. Faulty data is represented by a val
List at least three differences between a Professional and Amateur. *
For every 2 cars you wash your friend wash 3 cars. You wash a total of 8 cars. How many did your friend wash.
Draw angle abc of size 72
Tries to teach him how to spell The Adventures of Huckleberry Finn (Chapter 1)