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Sedbober [7]
3 years ago
6

18÷0.45

Mathematics
2 answers:
melomori [17]3 years ago
7 0

Answer:

it is 40

Step-by-step explanation:

0.45 can go into 18 40 times

atroni [7]3 years ago
7 0

Answer:

40

Step-by-step explanation:

0.45 goes into 18 forty times

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Can you describe how to write 4,638,000,000 in scientific notation
Lorico [155]

Answer:

4.638 × 10⁹

Step-by-step explanation:

6 0
3 years ago
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it takes 45 pounds of seeds to completely plant a 5 acre field how many acres can be planted per pound of seed
Travka [436]
1/9 acres. It's 9lbs/acre so you dive that by 9 and get 1/9 acres/lbs.
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I ran 8kilometers in 20 minutes that cost me $10 how many miles would it be if cost is $30
Nata [24]

Answer:

14.91288  miles

Step-by-step explanation:

We can use a proportion to solve this problem.  Put the distance over the cost.  We want our answer in miles so we need to convert 8 kilometers to miles.   1 km = .621371 miles

8 km * .621371 miles/ 1 km = 4.971 miles


4 .971 miles          x miles

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

10 dollars               30 dollars


Using cross products

4.971 * 30 = 10x

149.1288= 10 x

Divide by 10 on each side

149.1288/10= 10/10 x

14.91288 =x


6 0
3 years ago
Determine the slope of the line that passes through the points (0, -5) and (-6, 6).
melamori03 [73]

Hello there,


Slope:

6 - (-5) / -6 - 0

11/-6

<em>Slope=</em> -11/6


<em>Slope intercept form: </em>y = mx + b

-5 = -11/6(0) + b

-5 = b


Answer: y = -11/6x - 5


Hope I Helped!

-Char

7 0
3 years ago
Read 2 more answers
Please help me out.
sweet [91]

Answer:

  a) y = 10x +500

  b) $500

  c) $15 for 100; $10.50 for 1000

Step-by-step explanation:

<h3>a)</h3>

We assume the given "cost per unit" is the variable cost per unit. The total cost (y) for x units, given some fixed cost (b), is ...

  y = 10x +b

For 100 units, this is ...

  1500 = 10(100) +b

  500 = b . . . . . . . . subtract 1000

The cost function rule is ...

  y = 10x +500

__

<h3>b)</h3>

The fixed cost is the cost of producing 0 units:

  y = 10(0) +500

  y = 500 . . . . . . . the fixed cost in dollars

__

<h3>c)</h3>

The average cost (ac) of producing n units is the total cost divided by n:

  ac(n) = (10n +500)/n = 10 +500/n

The average cost for 100 units is

  ac(100) = 10 +500/100 = 15 . . . average dollar cost for 100 units

The average cost for 1000 units is ...

  ac(1000) = 10 +500/1000 = 10.50 . . . average dollar cost for 1000 units

4 0
3 years ago
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