gatsbysgirl324 gatsbysgirl324
  • 03-01-2018
  • Mathematics
contestada

Sam is 5 years old. his older brother, tom, is three times as old as sam. when sam is 20, how old will tom be? 15

Respuesta :

mathildaramaqap1ywpc
mathildaramaqap1ywpc mathildaramaqap1ywpc
  • 03-01-2018

[tex]5 + 3x = 20 \\ 3x = 20 - 5 \\ x = 15 \div 3 \\ x = 5[/tex]
Answer Link

Otras preguntas

a² + b² + ab = 7 b² + c² + bc = 21 a² + c² + ac = 28 ab + bc + ac = ?
Who was responsible for Jesus' death and who actually crucified him? Use evidence.
Select the correct answer from each drop-down menu. At chemical equilibrium, the amount of because .
If the inequality contains < symbol, then graph the equation using a _______________ line.
please help me asap :)
2. Grapes, when tested with Benedict's reagent, gave brick red colour, whereas the iodine test didn't show any colour change. A. What does the test results indi
Write a quadratic function f whose zeros are 2 and 7.
Plants counteract the greenhouse effect by removing___________ during photosynthesis. A. oxygen B. carbon dioxide C. glucose
. The probability that a patient catches flu is 3/8, the probability that he has a headache is 5/15, and the probability that he has asthma is 4/9. If we know t
4 Pencils and 2 rulers cost $8. 2 pencils and 4 rulers cost $10. Find the cost of 3 rulers and 3 pencils