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hichkok12 [17]
2 years ago
14

What property is used to show that 3(4-6)=12-18?​

Mathematics
2 answers:
Rudiy272 years ago
3 0

Answer: commutative property

Step-by-step explanation:

Serga [27]2 years ago
3 0

Answer:

Distibutive property

Step-by-step explanation:

becuase you have to multiply 3 times 6 and 3 times 6 to get 12-18

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A robot can complete 4 tasks in 5/6 hour. Each task takes the same amount of time. a. How long does it take the robot to complet
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It takes the robot 10 mins for each task the robot can complete 6 tasks in an hour
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3 years ago
ANSWER ASAP!!!
denis23 [38]

Answer:

Then, the object will take 29.11 min to travel 4\frac{9}{10}miles

Step-by-step explanation:

When an object is moving at a steady speed, we can calculate the time it would take to travel a given distance using the following formula:

time=\frac{distance}{speed} (equation 1)

In this particular, both the given speed and distance are mixed fractions so we'll first convert them into improper fractions to operate more easily:

speed=10\frac{1}{10} \frac{mi}{h} =\frac{(10*10)+1}{10} \frac{mi}{h}=\frac{101}{10}  \frac{mi}{h}

distance=4\frac{9}{10}mi=\frac{(4*10)+9}{10}mi=\frac{49}{10}mi

So, now we can calculate the time using the equation 1:

time=\frac{distance}{speed}=\frac{\frac{49}{10}mi }{\frac{101}{10} \frac{mi}{h} } =\frac{49*10}{101*10} h

time=\frac{49}{101}h=0.49h

And, if we want the result in minutes:

time=\frac{49}{101}h*\frac{60min}{1h}  =29.11min

Then, the object will take 29.11 min to travel 4\frac{9}{10}miles

5 0
2 years ago
247 is 38 percent of what amount? ❓
prisoha [69]
The question is asking that X times 38% will equal to 247. So we set up the equation:

x *  \frac{38}{100}  = 247

Then, we multiply both sides by \frac{100}{38}

and we get the answer is 650
7 0
2 years ago
Read 2 more answers
-m + 5n = -2, for n <br>​
MakcuM [25]

Answer:

<h2><u><em>n = 1/5m + (-2)/5</em></u></h2>

Step-by-step explanation:

-m + 5n = -2, for n

-m + 5n = -2

-m +5n + m = -2 + m

5n = m - 2

5n/5 = (m-2)/5

n = 1/5m + (-2)/5

6 0
2 years ago
A bag contains 3 purple and 5 orange jelly-beans. If one jelly-bean is selected and is NOT replaced and a second jelly-bean is s
Elan Coil [88]

P(orange and then a purple) is 15/56.

P(two purples in a row) is 6/56.

<u>Step-by-step explanation:</u>

  • A bag contains 3 purple and 5 orange jelly-beans.
  • The total jelly-beans in the bag = 3 purple + 5 orange = 8 jelly-beans.

<u>Without replacement, find P(orange and then a purple) :</u>

P (orange) = No.of orange jelly-beans / total jelly-beans.

⇒ 5 / 8

P (purple) = No.of purple jelly-beans / remaining jelly-beans from the total

⇒ 3 / 7

P(orange and then a purple) = P (orange) × P (purple)

⇒ 5/8 × 3/7

⇒ 15/56

<u>Without replacement, find P(two purples in a row) :</u>

P (1st purple) = No.of purple jelly-beans / total jelly-beans.

⇒ 3 / 8

P (2nd purple) = remaining no.of purple jelly-beans / remaining jelly-beans from the total.

⇒ 2 / 7

P(two purples in a row) = P (1st purple) × P (2nd purple)

⇒ 3/8 × 2/7

⇒ 6/56

8 0
3 years ago
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