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____ [38]
3 years ago
11

There are 170000 cows. 10 percent of them die each year. How many cows will be left after 20 years have passed?

Mathematics
2 answers:
Alenkasestr [34]3 years ago
8 0
The answer is 153,000
nasty-shy [4]3 years ago
8 0
153,000 cows. 170000-10%=153,000
170,000-30%=119,000 cows would be left after 20 years. I just added 20 to 10% to make 30% and subtracted 170,000-30% and got 119,000. Hope it helps. But not sure if that’s right
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The ratio of dimes to quarters in a money bag is 2:14. if the total numbers of coins is 48, how many quarters are there?
Bess [88]

Answer:

There are 42 quarters (and 6 dimes).

Step-by-step explanation:

The given ratio is 2:14.  But this does not tell us how many dimes nor how many quarters we have.  Instead, it's a ratio.  Modify this by multiplying numerator and denominator by n and then find n:

Number of dimes        2n

----------------------------- = -----

Number of quarters     14n

Then the total number of coins is 2n + 14n =48, implying that:

16n = 48, or n = 3.

Then the number of dimes is 2(n) = 2(3) = 6, and that of quarters is 14(n) =

14(3) = 42.

There are 42 quarters (and 6 dimes).  Notice how the total of 42 and 6 is 48.

7 0
3 years ago
Is 0.81 the same as 0.081
Marina CMI [18]
No it is not. One is in hundreths and the other thousandths 
7 0
3 years ago
Read 2 more answers
The total cost in dollars to buy uniforms for the players on a volleyball team can be found using the function C equals 34.95 yo
ASHA 777 [7]

Answer:

8 ≤ u ≤ 12

Step-by-step explanation:

Given:

C = 34.95u +6.25

Where,

u = number of uniforms

what is the domain you of the function for this situation

The number of uniforms depend on the number of players

If there are at least 8 players but not more than 12 players on the volleyball team.

u ≥ 8

u ≤ 12

The domain of the function is

8 ≤ u ≤ 12

8 0
3 years ago
Multiply (3x – 1)(5x – 9) Show work Please
Murljashka [212]

Answer:

15x^2-32x+9

Step-by-step explanation:

(3x – 1)(5x – 9)

FOIL

first: 3x*5x= 15x^2

outer: 3x(-9) = -27x

inner: -1(5x) = -5x

last: -1(-9) = 9

Add them together

15x^2 -27x-5x +9

Combine terms

15x^2-32x+9

6 0
3 years ago
Read 2 more answers
Solve each equation y-6.72=253
diamong [38]
You just need to have the variable by itself, so move the -6.72 to the other side (that will make it +6.72)
So you should have this equation now: y = 253+6.72
Then just add them and you have this: y = 259.72
And that is your answer!

Hope I helped! <3
7 0
3 years ago
Read 2 more answers
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