SAT prep: Prove that 3x – 4 ( 5 – x ) is equivalent to 7x – 20
1 answer:
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Answer:
13
Step-by-step explanation:
Given:
- Square stickers that were 3/4 in long
- The spine is 10 and 1/2 in long
If she laid the stickers side by side without gaps or overlaps so the number of sticker to cover the length of the spine:
10 : ≈13
She needs 13 stickers cover the length of the spine