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Lorico [155]
3 years ago
13

Andrea writes a down a number , k. I write down a number that is 4 less than 5 times Andrea's number. If the sum of our numbers

is 14, find the two numbers.
Mathematics
1 answer:
devlian [24]3 years ago
7 0

Givens

Andrea: K

Me: 5k - 4

Sum

k + 5k - 4 = 14

Solve

6k - 4 = 14              Add 4 to both side.

6k - 4 + 4 = 14 + 4

6K = 18                  Divide by 6

k = 18/6

k = 3

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Indica si cada afirmación es verdadero (v) o falso (f) .
Ksivusya [100]

<span>A es falso porque podría dividirse por negativo.

B es verdadero porque el divisor siempre entrará en el dividendo.

C es falso porque cambiar el orden dará lugar a respuestas diferentes.

D es falso porque la propiedad asociativa no se aplica a la división.

E es falso porque no es "solo suficiente", aún necesita asegurarse de que el dividendo sea un número entero y el divisor sea un factor del dividendo.</span>
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4 years ago
Solve by factoring 2x^3-9x^2+10x=0 with full steps
Strike441 [17]
X(2x²-9x+10)=x(2x-5)(x-2)=0.
x=0 is one solution.
2x-5=0 and x-2=0 give us the solutions x=5/2 and x=2.
So x=0, 2 or 5/2.
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3 years ago
18:a = 14:21 what does a equal?
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Step-by-step explanation:

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What is numbers line x&lt;8
drek231 [11]

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3 years ago
Five carpenters worked 15 &amp; 3/4, 15 &amp; 1/4, 17 &amp; 1/2, 12 &amp; 1/2 and 17 &amp; 1/2 hours respectively. What was the
azamat

<u>The total </u><u>labor cost</u><u>  of the carpenters is $2296.91</u>

The carpenters worked 15\frac{3}{4} , 15\frac{1}{4}, 17\frac{1}{2}, 12\frac{1}{2}, 17\frac{1}{2}

<h3>Conversion of Fraction</h3>

Let's convert the mixed fraction to improper fraction

So, we would have

  • 63/4,
  • 61/4,
  • 35/2,
  • 25/2
  • 35/2.
<h3>Working Cost</h3>

Let's sum it up and multiply by the working cost per hour

63/4 + 61/4 + 35/2 + 25/2 + 35/2 =78.5

  • The total labor cost is = total hours worked * hourly rate.

This becomes 78.5*29.26=2296.91

<u>The total labor cost is $2296.91</u>

Learn more about rate here;

brainly.com/question/1115815

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3 years ago
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