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nevsk [136]
3 years ago
12

Multiplicative inverse of 2/3 ?

Mathematics
2 answers:
Fiesta28 [93]3 years ago
8 0

Answer:

-2/3

Step-by-step explanation:first multiply by -1


mars1129 [50]3 years ago
5 0

Answer: 3/2


Step-by-step explanation: Multiplicative inverse is just flipping the number. Its property when multiplied is always 1. 2/3 * 3/2 = 6/6 = 1


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Benjamin rode tghe train for 45 minutes. Then it took him another 30 minutes to walk to his friend's house. How many hours did h
statuscvo [17]

Answer:

1.25 hours

Step-by-step explanation:

Benjamin rode tghe train for 45 minutes. Then it took him another 30 minutes to walk to his friend's house. How many hours did he spend riding and walking to his friend's house?

The number of hours he spent riding and walking to his friends house is calculated as:

45 minutes + 30 minutes

= 75 minutes

Converting this to hours

60 minutes = 1 hour

75 minutes = x

Cross Multiply

60 × x = 75 × 1

x = 75/60

x = 1.25 hours

8 0
3 years ago
Helpppppppp meeeeeeeeeeeeee
Semenov [28]

Answer:

18

Step-by-step explanation:

(23+7²)= 23+7×7=72

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5 0
3 years ago
A number of two digits is increased by 54 when the digits are reversed. The ten digits is three times the unit digit. Find the n
bija089 [108]

Let <em>n</em> be the unknown number. We can write it as

<em>n</em> = 10<em>a</em> + <em>b</em>

with <em>a</em> and <em>b</em> integers between 1 and 9 (either with positive or negative sign).

Reversing the digits gives another number

<em>m</em> = 10<em>b</em> + <em>a</em>

The first number is increased by 54 when the digits are reversed, which means

<em>m</em> = <em>n</em> + 54   →   10<em>b</em> + <em>a</em> = 10<em>a</em> + <em>b</em> + 54   →   9<em>b</em> - 9<em>a</em> = 54   →   <em>b</em> - <em>a</em> = 6

The digit in the tens place of <em>n</em> is 3 times the digit in the ones place, so

<em>a</em> = 3<em>b</em>

Substitute this into the previous equation and solve for <em>b</em> :

<em>b</em> - <em>a</em> = <em>b</em> - 3<em>b</em> = -2<em>b</em> = 6   →   <em>b</em> = -3

Solve for <em>a</em> :

<em>a</em> = 3<em>b</em> = 3(-3) = -9

Then the original number is <em>n</em> = 10<em>a</em> + <em>b</em> = 10(-9) + (-3) = -93

3 0
3 years ago
Read 2 more answers
What is 5 2/3 in radical form?
velikii [3]
5^(2/3)=25^(1/3)
Third one ( the one below your selection)
6 0
3 years ago
Find the product. ( 5/6 )( 5/8 )( 3/2 )
AVprozaik [17]

Answer:

The answer is C

Step-by-step explanation:

(5/6)(5/8) = 25/48

(25/48)(3/2) = 75/96

simplify 75/96 = 25/32

7 0
3 years ago
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