alissa3329
12.02.2020 •
Mathematics
a cup has both pens and pencils. 30% of the items in the cup are pens. if the cup is holding 40 items, how many of the items are pencils? a cup has both pens and pencils. 30% of the items in the cup are pens. if the cup is holding 40 items, how many of the items are pencils?
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Ответ:
28
Step-by-step explanation:
70% of the 40 items are pencils.
0.70 × 40 = 28
28 of the items are pencils.
Ответ:
5+2x=2x+6
Step 1: Simplify both sides of the equation.
2x+5=2x+6
Step 2: Subtract 2x from both sides.
2x+5−2x=2x+6−2x
5=6
Step 3: Subtract 5 from both sides.
5−5=6−5
0=1
There are no solutions.