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

How are a substance and a solution similar? how are they different?
Need help finishing problem 27.
Based on predicted production of 21,000 units, a company anticipates $357,000 of fixed costs and $309,750 of variable costs. the flexible budget amounts of fixe
Distinguishing between study skills and study methods
What is the vertical line at the end of a measure called? Meter line Bar line Dynamic line Score line
Which bonds are hydrolyzed during the breakdown of starch during digestion? A.) 1 and 4 B.) 1 and 3 C.) 1 and 2 D.) 3 and 4 E.) 2 and 3
The distance between P and T on the coordinate grid is ___ units. (Input whole numbers only.) Image of a coordinate grid with point P located at negative 10,
Can someone give me a one sentence example of distance decay? Has to have the words "distance decay" in it.
Cryptozoology is a field of study aimed at proving the existence of mystery animals such as bigfoot and the Loch Ness monster why is cryptozoology not consider
What does Cuando son las doce y cuarto en Mexico, es la una y cuarto en San Juan mean in Spanish?