arle4yItsmeSwee arle4yItsmeSwee

04-12-2016
Mathematics

contestada

four times daphne's age plus five times isaac's age adds up to 57. also, isaac's age is 11 less than twice daphne's age. how old is isaac?

Respuesta :

texaschic101 texaschic101

04-12-2016

4d + 5i = 57
i = 2d - 11

4d + 5(2d - 11) = 57
4d + 10d - 55 = 57
14d = 57 + 55
14d = 112
d = 112/14
d = 8 <== Daphne's age

i = 2d - 11
i = 2(8) - 11
i = 16 - 11
i = 5 <==Isaac's age

Answer Link

Otras preguntas

What do capulet and Montague decide to do at the end of the story

Can someone pls give me the answer?

Which of the following statements best summarizes Garcia’s view of cultural identity

Which property would xenon most likely have?

(5x²+2) - (-4x²+7)+(-3x²-5)

HELP WITH THE FIRST QUESTION WHAT IS THE INEQUALITY

Why were Athenians so prideful

Which graph represents an exponential function?

summarize how inherited genetic variation are caused and influenced by environmental factors only

What is the pOH of a substance with a Hydrogen concentration of 3.45 x 10-9. suppose to be a small 9 THINK CAREFULLY!a. 8.46b 6.71c. 10.98d. 5.54

Q&A Education