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 :

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

hi guys I need help me

What does the first paragraph of Of Plymouth Plantation reveal about the attitudes and beliefs of the Pilgrims who traveled with William Bradford?

1) The amount of water on Earth is _______ a. always the same. b. constantly changingc. steadily increasing. d. steadily decreasing.2) What controls whether wat

help ASAP!!! bensnsnana

"My mother usually buy food at the market" make a sentence WH- question

What different ranges of blood pressure indicate

Find the volume of this solid.

Explain how you think these symbols are related to critical thinking?

there are x boys and y girls at the camp.how many children are at the camp altogether? (EXPRESS YOUR ANSWER IN TERMS OF X AND Y )

look at the image for the question