MATHEMATICS MIDDLE SCHOOL

What is 0.57 divided by 30 with an explanation

Answers

Answer 1

Answer: 0.57 divided by 30 is .... 0.019

4

Step-by-step explanation:

From first piece -6 < x ≤ 0.

From second piece 0 < x ≤ 4.

Therefore -6 < x ≤ 4 → x ∈ (-6, 4]

-7 ∉ (-6, 4]

-6 ∉ (-6, 4]

4 ∈ (-6, 4]

5 ∉ (-6, 4]

Pat bought a boat for $37,000 in 2001. In 2006 the boat was worth $27,000. If the boat depreciation is linear, how much will the boat be worth in 2009? A) $27,000
B) $22,000
C) $21,000
D) $20,000

Answers

Answer: C) $21,000

Step-by-step explanation:

Given : Pat bought a boat for $37,000 in 2001. In 2006 the boat was worth $27,000.

If the boat depreciation is linear, then the amount by which the value of boat depreciates must be constant.

Let x be the constant depreciation in the value of boat per year.

Then , the value of boat (in dollars) after n years from 2001 is given by :-

$V=37,000-nx$ (1)

For year 2006 , n=5 and V = 27000

Then , $27000=37,000-5x$

i.e. $5x=37,000-27000$

i.e. $5x=10,000$

i.e. $x=2,000$

Thus , the constant amount of depreciation in the value of boat per year. = $2000

Now for year 2009 , put in n=8 and x= 2000 in (1), we get

$V=37,000-(8)(2000)=37000-16000=21000$

Hence, the value of boat in 2009 = $21,000

the answer is C) $21,000

hope this helps

Sanji throws an 8-sided solid with faces numbered 1 through 8. What is the probability of rolling a number greater than or equal to 4?

Answers

Answer:4/8

so 1/2

Step-by-step explanation:

there are only 8 sides so that is going to be your denominator then take 4 from 8 which gives you 4.

A boat can travel 132 miles on 11 gallons of gasoline.how much gasoline will it need to go 252 mileswhat do I do?

Answers

rate is miles/gallons
132/11=12 mile pser 1 galon
ratio and propeortion
132/11=252/xgalons
12/1=252/x
multiply both sides by x
12x=252
divide both sides by 12
x=21

21 gallons

132/11=12per gallon'

12*11=132

252/12=21

21*12=252

11+11=21

21 is your answer

A 14 kg bag of pears for $17. how much is per