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satela [25.4K]
3 years ago
6

Converting with Decimals, Percent, and Fractions. Please help me ASAP!

Mathematics
1 answer:
sashaice [31]3 years ago
5 0

Answer:

1 is 0.5 and 50%

2 is 0.2 and 20%

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Carolina paid $15.80 for 4 hamburgers.
jarptica [38.1K]

Answer:

The cost of one hamburger is $3.95.

Step-by-step explanation:

15.80/4=3.95

6 0
2 years ago
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Set up and evaluate the optimization problems. (Enter your answers as comma-separated lists.) Find two positive integers such th
alexira [117]

Answer and Step-by-step explanation:

Let x and y be two positive integers and their sum is 14:

X + y = 14

And the sum of square of this number is:

f = x2 + y2

 = x2+ (14 – x)2

Differentiate with respect to x, we get:

F’(x) = [ x2 + (14 – x)2]’ = 0

        2x + 2(14-x)(-1) = 0

        2x +( 28 – 2x)(-1) = 0

     2x – 28 +2x = 0

        2x + 2x = 28

         4x = 28

       X = 7

Hence, y = 14 – x = 14 -7 = 7

Now taking second derivative test:

F”(x) > 0

For x = y = 7,f reaches its maximum value:

(7)2 + (7)2 = 49 + 49

                   = 98

F at endpoints x Є [ 0, 14]

F(0) = 02 + (14 – 0)2

       =  196

F(14) = (14)2 + (14 – 14)2

  = 196

Hence the sum of squares of these numbers is minimum when x = y = 7

And maximum when numbers are 0 and 14.

6 0
2 years ago
A triangle with side lengths a, b, and c is shown below.
nataly862011 [7]

Answer:

a+c=b

hope it helps you

bye

7 0
1 year ago
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it takes josh 40 minutes yo walk the dog it takes mike 80% as long to walk the dog how long does it take mike to walk dog
Katarina [22]

Answer:

32 minutes

Step-by-step explanation:

80% = .80

40 * .80 = 32

7 0
2 years ago
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6+n/60=15/90<br><br> How do I dolce this
Lilit [14]
6+\frac{n}{60}=\frac{15}{90}\\\\6+\frac{n}{60}=\frac{1}{6}\ \ \ \ \ |multiply\ both\ sides\ by\ 60\\\\360+n=10\ \ \ \ \ \ \ |subtract\ 360\ from\ both\ sides\\\\\boxed{n=-350}
8 0
3 years ago
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