There are 50 puzzles and angel puzzle book angel finish 30% of the puzzles how many puzzles does she have left to do.

Step-by-step explanation:

Let

x----> amount of puzzles left to do

we know that

To find the number of puzzles left to do, multiply the total number of puzzles by 0.70.

35

Step-by-step explanation:

30% of 50 = 15

angel has completed 15 of them

she now needs to complete the remaining:

50- 15 = 35

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step-by-step explanation:

x=0

step-by-step explanation: