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3 years ago

14. Anna, Bella, Claire, Dora and Erika meet at a party. Each pair who know each other shake hands exactly once.

Mathematics

2 answers:

Kipish [7]3 years ago

5 0

Answer:

(B) part is the answer which means he shook hands with 2.

Step-by-step explanation:

Since Dora shook hands four time with: Alan, Bella, Claire, Erik. Then Erik shook hands only with Dora. Claire shook hands three times with Bella, Claire and Dora. Then Bella shook hands with two people Claire and Dora. Now Erik would shook hands only with those who shook hands with him. 2 people Claire and Dora

gogolik [260]3 years ago

4 0

Answer:

what i didnt understood this question from which country u r

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A man travels 2 miles, turn left and travels 3 miles, turn left again and travel 6 miles. How far is he from the starting point?

Lelu [443]

Answer: 5 miles

Step-by-step explanation:

this creates a polygon which can be shortened to be a triangle with side lengths 3 and 4 and the hypotenuse unknown. to find the side length you use the formula a^2 + b^2 = c^2

3^2 + 4^2 = c^2

9 + 16 = c^2

25 = c^2

sqrt(25) = c

c = 5

Download pdf

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3 years ago

Find x and y. Give reasons to justify your solution.

Alekssandra [29.7K]

Answer:

x = 32

y = 35

Step-by-step explanation:

x = 32 because they are vertical angles. Vertical Angles means a pairs of opposite angles made by two intersecting lines.

y = 35 because the vertical angle for y is 35 (view attached image below). Also, if we add all the angles together in the image, it comes out to a sum of 360 degrees, which is a full circle.

5 0

3 years ago

Read 2 more answers

X=3<br> 5x+4y=-9<br> -x+4y-2z=-25

Alexandra [31]

Answer:

y=-6 z=-1

Step-by-step explanation:

5(3)+4y=-9

15+4y=-9

-15. -15

4y=-24

/4. /4

y=-6

-x+4y-2z=-25

-3+4(-6)-2z=-25

-3+-24-2z=-25

-27-2z=-25

+27. +27

-2z=2

/-2. /-2

z=-1

5 0

3 years ago

Natalie picks 40 bushels in 12 hours and Mary can pick the same amount in 11 hours. how long would it take if they worked togeth

rosijanka [135]

Answer: $5.73\ hours$ or $5\ hours\ and\ 44\ minutes$

Step-by-step explanation:

You can use the following work-rate formula:

$\frac{t}{t_A}+\frac{t}{t_B}=1$

In this case let be ${t_A}$ the time it takes for Natalie to pick 40 bushels, ${t_B}$ the time it takes for Mary to pick 40 bushels and $t$ the time it takes to pick 40 bushels if they work together.

Based on the information given in the exercise, you can identify that:

$t_A=12\\\\t_B=11$

Then, knowing this values, you need to substitute them into the formula:

$\frac{t}{12}+\frac{t}{11}=1$

Finally, you must solve for "t" in order to find its value.

The result is:

$t(\frac{1}{12}+\frac{1}{11})=1\\\\t(\frac{23}{132})=1\\\\t=\frac{132}{23}\\\\t=5.73\ hours$

Since $1\ hour=60\ minutes$ :

$(0.73\ hours)(\frac{60\ minutes}{1\ hour})\approx44\ minutes$

Therefore it would take 5 hours and 44 minutes to pick 40 bushels if they worked together.

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3 years ago

Explain how to multiply decimals

seropon [69]

Answer:

Answer: 1.3104

(The picture explains it, if you dont understand, sorry but it's kinda hard to explain. I hope it helped.)

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4 years ago