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

Which of the following is NOT one of the roles of the President of the United States? a. head of state b. chief executive c. speaker of the House d. command
A section in a Stainglass window is shaped like a trapezoid the top is I was 4 cm in the bottom base is 2.5 cm long if the area of the section of the glass is 3
Carmine paid electrician x dollars per hour for a 5-hour job plus $70 for parts,. The total charge was $320. Which equation can be used to determine how much th
using the tape diagram below create a story problem about a farm your story must include a fraction
QUICK HELP PLEASE!! What is an equivalent fraction.
Which is the BEST description of how Booker T. Washington's response to the restrictions placed on African-Americans during the post-Reconstruction period was
what is (13-2x)(13-2x) ?
what is a coral distribution
Which of the following words is derived from a person's name,rather than from a Greek or Latin? a. martinet b. sycophant c. virago d. patriarch
What caused a severe economic crisis in Japan during the 1990s?