SuperWoman9172
19.10.2021 •
Mathematics
10(c–1)=80 i need help
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Ответ:
C =9
Step-by-step explanation:
10(c−1)=80
Step 1: Simplify both sides of the equation.
10(c−1)=80
(10)(c)+(10)(−1)=80(Distribute)
10c+−10=80
10c−10=80
Step 2: Add 10 to both sides.
10c−10+10=80+10
10c=90
Step 3: Divide both sides by 10.
10c
10
=
90
10
c=9
Ответ:
2. MP and NO are the bases so applying the above formula:
x=6
Check the picture for the proof of the theorem m=(a+b)/2