radomes.openskiesproject.org
Anonymous Anonymous
  • 06-01-2017
  • Mathematics
Answered

28/21 = 42/x solve for x

A: 14

B: 18 2/3

C: 31 1/2

D: 56

i cant figure out what it is, and im slightly confused

Verified Answer :

leeandrews2
leeandrews2 leeandrews2
  • 06-01-2017

28/21=42/x   multiply both sides by x

28/21x=42   divide by 28/21 on both sides ( or multiply both sides by 21/28)

X= 63/2
X= 31 1/2

Answer Link
olemakpadu
olemakpadu olemakpadu
  • 06-01-2017

28/21 = 42/x

Cross Multiply

28x = 2142

x = 21*42/28      use your calculator.

x = 31.5

x = 31  1/2

option C

Hope this explains it.

Answer Link

Related Questions

Solve for x 8x 1 3x 4 72 x
Can you elaborate on the relevance of context AContext cannot help you understand the character motivations and values BContext can help you understand the char
What are some barriers to treatment adherence by parents
why do some people think kreteks are a safe alternative to cigarettes
write an expression showing 8 less than the sum of x and n Is the answer nx8
When is thermal equilibrium achieved between two identical objects A when one object is colder than the other B when one objects is hotter than the other C when
Why are animal cells round
How did the war in Vietnam eventually end A Russian troops entered the war and defeated the Vietnamese B The North Vietnamese surrendered to the South Vietnames
you are traveling to the heart of the arabian peninsula which of the following should you most likely bring
the product of 18 and 5 less than a number is 162