3 years ago

Help me please,Thanks

1 answer:

6 0

<span>Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation?</span>

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PLEASE HELP !!!!!!!!!

iVinArrow [24]

Answer:

f (x) = 4,500 + 250x; 24 months

Step-by-step explanation:

Because 10,500 - 4,500 = 6,000

6,000 / 250 = 24

Hope this helped

4 0

3 years ago

The weight of an object is affected by gravity. Something that weighs 1 pound on earth will weigh 1.08 times that weight on Satu

laila [671]

Answer:

2.7 lb

Step-by-step explanation:

2x1.08=2.16

1/2x1.08=0.54

2.16

+ <u>0.54</u>

2.70

2.70 = 2.7

5 0

3 years ago

An auditorium has 20 seats on the first row, 24 seats on the second row, 28 seats on the third row, and so on and has 30 rows of

Lilit [14]

Answer:

140

Step-by-step explanation:

20+4(s)=

20+4(30)=

20+ 120=

140

8 0

3 years ago

Mrs. Owens bought two candle holders for her dining room table. She paid with a $100 bill and received $32.16 in change. If sale

Neko [114]

32.16$ is the answer to this question

4 0

3 years ago

Read 2 more answers

A book seller gains 30% on the cost price by selling a book for $130.Calculate the cost price of the book.

zlopas [31]

Answer:

Let the cost price be x

Selling price, S.P. = 130
Gain % = 30%

$\rm{C.P. = \dfrac{S.P. \times 100}{100+ gain \% }}$

$\rm{C.P. = \dfrac{130 \times 100}{100+30}}$

$\rm{ C.P. = \dfrac{130}{30} }$

$\large{\boxed{\rm{ C.P. = \dfrac{13}{3}}}}$

6 0

2 years ago