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andreyandreev [35.5K]
3 years ago
6

There are 15 boys and 15 girls at a party. Each boy shakes hands with exactly five people and each girl shakes hands with exactl

y seven people. How many handshakes were there in total?
Mathematics
2 answers:
VLD [36.1K]3 years ago
7 0

Answer:

180 hand shakes

Step-by-step explanation:

15 + 15 = 30

boys= 5x15 = 75

girls=7x15 = 105

75+105=180

180 handshakes in total

vlabodo [156]3 years ago
4 0

Answer:

180 I think

Step-by-step explanation:

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X+2 = 7/8 mulltiplied by -15x
Marysya12 [62]

Answer:

x=16/113

Step-by-step explanation:

look at them in order

3 0
3 years ago
Refer to the data above. What number represents the slope of the line, if the points on the graph above were joined?
Dmitrij [34]

Answer:

slope = 40

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (2, 80) and (x₂, y₂ ) = (4, 160) ← 2 points on the line

m = \frac{160-80}{4-2} = \frac{80}{2} = \frac{40}{1} = 40

4 0
3 years ago
Can someone help me out
seraphim [82]
A is addition
b is subtraction
c is division
5 0
3 years ago
(Can somebody find the sum of this) <br><br><br> (5+2i)+(8-3i)
7nadin3 [17]
Hey there!!

Okay so here are the steps....

(5 + 2i) + (8 - 3i)       <---- when we have exponents we should worry about the                                            "i" because it is equal to √-1 but here it isn't the case.
<u>

(13 - i)</u>
<u />   <----- This is the answer!



<u />I hope this helps! ^__^
7 0
3 years ago
What is the answer to 10k-9=9k + 10?
oee [108]
K=19 which would leave the equation 181=181. The first step to solving this is subtracting 9k from each side.
after you do that it should be k-9=10
now you add 9 to both sides leave k=19. plug k into the equation and get 181=181
7 0
3 years ago
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