4.- UN RELOJERON COBRO $391.40 POR COMPONER 3 RELOJES; ¿CUANTO COBRARA POR ARREGLAR 5 RELOJES?

Answers

Answer 1

Answer: El relojeron les cobrará 652.33 por los 5 reloj ya que cada reloj vale 130.46

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Write an inequality for the given statement: Two-thirds of a number, decreased by 4, is less than 6.

Answers

Answer:

$(2)/(3) x$ < is the answer.

Step-by-step explanation:

Let number be x

two third of x = $(2)/(3) x$

two third of x decreased by 4 = $(2)/(3) x$ -4

which is less than 6 therefore mathematically it equals

$(2)/(3) x$ -4< 6

$(2)/(3)$ x-4<6

To get $(2)/(3)$ of a number you have to multiply the number by $(2)/(3)$ , which gives you $(2)/(3)$ x then you subtract that by 4. The inquality faces the 6 because it is greater than $(2)/(3)$ x-4 based on the statement above. The inquality always faces the greatest number.

What is the derivative of: y=1/(x+1)+2?

Answers

That derivative is - 1 / (x + 1)²

$y=(1)/(x+1)+2=(x+1)^(-1)+2\n\ny'=\left[(x+1)^(-1)+2\right]'=-(x+1)^(-1-1)=-(x+1)^(-2)=-(1)/((x+1)^2)$

There are 8 red, 5 yellow and 7 green cubes in a box. What is the probability of drawing a yellow cube and then a green cube, if the first cube is not replaced before the second cube is drawn?

Answers

Step 1: find out how many cubes are there in total.
There are 20 cubes total because 8+5+7 = 20

Step 2: find out how many yellow cubes you have.
In this problem you have 5 yellow cubes out of 20 cubes. So you chances of grabbing a yellow cube is 5 out of 20.

Step 3: simplify. You can simplify 5/20 to 1/5. So you have a 1/5 chance of grabbing a yellow cube.

Step 4: now find how many cube are green. You have 7 green cubes. Because you took out one cube and didn't replace it you now have 19 cubes. So you have a 7/19 chance of grabbing a green cube.

Step 5: now multiply 7/19 times 1/5. Please note you can not simplify 7/19 because 7 and 19 are prime numbers.

Answer 7/95 which is roughly around .073 or 7.3%

i think thats a 1 in 20th chance

Grace has won trophies in several sports. she won 1/3 of her trophies in soccer and 1/2 of trophies in backetball. how many trophies could grace have?

Answers

Basically speaking, any multiple of 6.

I need to prove in words how I got my answer for, "Find the smallest number easily divisible by each counting number from 1 to 10." The answer is 2520, but I don't know how to explain how I got it. Can anyone give me a basic answer to this?

Answers

Try writing each equation from 1-10 that equal this number. That will prove it. Hope this helps!

An astronaut spends 53% of the day working, 0.1 of the day eating, 3/10 of the day sleeping, and the rest of the day exercising. Order the events by duration from least to greatest.