graceoko1412
graceoko1412 graceoko1412
  • 07-05-2020
  • Mathematics
contestada

please solve card 6!

please solve card 6 class=

Respuesta :

knightallison68
knightallison68 knightallison68
  • 07-05-2020

Answer:

×=30⁰ :)

Step-by-step explanation:

x⁰+(x+30⁰)= 90⁰

x⁰+x⁰= 90⁰-30⁰=60⁰

2x⁰=60⁰

60⁰÷2=30⁰ => x⁰=30⁰

verification:

30⁰+(30⁰+30⁰)=90⁰

Answer Link
emmafrancisco
emmafrancisco emmafrancisco
  • 07-05-2020
x+x+30=90
2x+30=90
2x=90-30
2x=60
x=60/2
x=30
Answer Link

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