matius0711
28.08.2019 •
Mathematics
If $1 is equivalent to 0.77 euros, find the number of euros equivalent to $20.
solve the equation algebraically and check the solution.
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Ответ:
20d=?e
20/1=20
1 times 20=20
1d=0.77e
times both sides by 20
20d=15.4e
answer is 15.4 euros
Ответ:
60 tiles
Step-by-step explanation:
Make equations equal,
.99x + 24 = 1.39x
Move all terms containing x to the left side of the equation & subtact 24
-.4x = -24
Divide
x = 60
Double check:
.99(60) + 24 = 83.4
1.39(60) = 83.4
i hope this helps :)