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Kisachek [45]
3 years ago
10

If x- 3/4 =2 1/9 what does the x equals?

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
4 0
3/4+-2 1/9=your ****ing answer
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Dan and Dave can work together to paint a house in 4 days. Dan works twice as fast as Dave. How long would it take each of them
SSSSS [86.1K]

Answer:

Dan=6 days Dave=12 days

Step-by-step explanation:

1/2x + 1/x = 1/4

multiply each by 8x bc 4 * 2x = 8x

4 + 8 = 2x

12 = 2x

6 = x

8 0
3 years ago
What is the answer to 20x+7=4+6?
AnnyKZ [126]

Answer:

Step-by-step explanation:

7 0
2 years ago
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There are 40 people at Drake’s sweet sixteen party. Drake’s only rule is that everyone in the party must meet and shake each oth
Nonamiya [84]

Answer:

Given:

Total Number of people at the Drake’s sweet sixteen party = 40

Everyone in the party must meet and shake each other’s hand

1) How many handshakes are there altogether?

There was total of 780 handshakes in the party.

2. How did you get your solution:

If you have 7 people, person seven shakes six other hands, person  

six shakes five other hands, person five shakes fours other hands,  

person  ,four shakes three other hands, person three shakes two other hands,  and person two shakes one hand.  Another way to see it is,

Person 7  +person 6 + person 5 + person 4 +person 3 + person 2 +  person 1

= 6+5+ 4+3+2+1

=>21

so similairly in case of 40 persons

= 39+38+37+36+37+36+35+34 .................+3+2+1

=>780

3) What’s the quickest way to figure this out if Drake invited 1,000 people?

People at Party               Number of Handshakes

     2                                                     1

     3                              1 + 2              = 3

     4                            1 + 2 + 3          = 6

     5                          1 + 2 + 3 + 4      = 10

     6                        1 + 2 + 3 + 4 + 5  = 15

     .

     .

     .                                          

     n                              1 + 2 + ...+ (n-1) =  --------     \frac{n(n-1)}{2}

Hence for n persons the number of handshakes will be  \frac{n(n-1)}{2}

So for 1000 persons the number of handshakes will be

=>\frac{1000(1000-1)}{2}

=>\frac{1000(999)}{2}

=>\frac{999000}{2}

=>499,500

                                                     

3 0
2 years ago
Please solve the equation _4(4n+2)=4
MrRissso [65]
16n+8=4
16n=4-8
16n=-4
n=-4/16
n=-1/4.
8 0
3 years ago
Read 2 more answers
How do I solve this? I know it's easy but I don't understand clearly​
faltersainse [42]

The answer is r = p/2n - x/n

8 0
1 year ago
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