The weight of a bar of soap decreases by 2.5% each time it is used. If the bar weighs 95 grams when it is new, what is its weight to the nearest gram after 15 uses?
what formula do I use ​

9514 1404 393

  65 grams

Step-by-step explanation:

The formula for an exponential sequence is ...

  w(n) = (initial weight) × (1 - (decrease per use))^n . . . . for n uses

  w(n) = 95·0.975^n . . . . . filling in the given numbers

Then for 15 uses, the weight is ...

  w(15) = 95·0.975^15 ≈ 64.98 ≈ 65

The weight after 15 uses is about 65 grams.

think about it deeply and passionately about this property

i am sorry

there has been genes found in the x chromosome of males that have been linked to [homo/hetero]sexuality. in addition to the reign of the x chromosome, a section of chromosome 8 has also been link to, "alot of ppl are so " these facts were proven true after a 2014 study of a gay male and his strait brother. according to newscientist.com,"chromosome 14 and is mainly active in the thyroid, but also the brain. called tshr, it makes a type of receptor protein that recognises and binds to a hormone that stimulates the thyroid. in this way, the gene plays an important role in controlling thyroid function. the fact that tshr seems to be involved in sexual orientation fits with evidence that thyroid function seems to be linked to sexuality."

in conclusion, "ppl are so gay" due to their genetics.