Help anyone. I want to be good at math
2 answers:
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If the first 10 bricks come out at $ 4.5, I would be spending $ 45. The other 10 bricks come out at $ 3.5 so he would be spending $ 35. Therefore, he has $ 20 available to buy bricks at $ 2.5, which would be buying 8 additional bricks. Thus, in total, with $ 100, 28 bricks were purchased.
Answer:
76.8
Step-by-step explanation:
Using the proportion
→ Percent is out of 100
=
( cross- multiply )
100n = 7680 ( divide both sides by 100 )
n = 76.8