daisyyy12
19.11.2019 •
Mathematics
Write a number sentence to solve the following problem sophie earned it $10 for babysitting she bought a book with her $10 and was given back three dollars change how much was the book
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Ответ:
Parallelograms’ angles are all equal. So the two given are equal.
6x + 13 = 7x - 5
x = 18
Plug x back into one of the original angles
6(18) + 13 = 121
Now we know all the angles are 121°, so that’s the answer