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user100 [1]
3 years ago
8

50 people took a rest before the test they predicted whether they would pass or fail 30 People predicted they would pass 26 of t

hose people who predicted they would pass it costs 37 people passed altogether complete the frequency tree
Mathematics
1 answer:
Gre4nikov [31]3 years ago
5 0
37-26=11
26+4+11=41
50-41=9
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What is the value of x in the proportion below? 8/72 = x/36
barxatty [35]

Answer:

x = 4

Step-by-step explanation:

8/72 = x/36

crossmultiply

8 x 36 = X x 72

288 = 72x

divide both sides by 72

288/72 = x

therefore , x = 4

3 0
3 years ago
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In the parallelogram DEFG, DH=x+1, HF=3y, GH=3x-4, and HE=5y+1. Find the values of x and y. The diagram is not drawn to scale.
RideAnS [48]

Answer:

Step-by-step explanation:

Given:  In parallelogram DEFG,

DH = x + 1

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GH = 3x - 4

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x+1=3y            (1)

3x-4=5y+1      (2)

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7=4y-1

y=2

Substituting the value of y=2 in equation (1), we get

x+1=3(2)

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8 0
3 years ago
How do you simplify 40/71​
uysha [10]

Answer:

40/71

Step-by-step explanation:

Because 71 is prime so there is no other way to simplify

3 0
3 years ago
two men A and B stand on opposite sides of a 100 metre tower.A observes the angle of elevation of the top of the tower as 45 and
Zepler [3.9K]

9514 1404 393

Answer:

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Step-by-step explanation:

The tower represents the short side of a 30°-60°-90° right triangle. The distance from the tower represents the long leg, not the hypotenuse, of that triangle. It is √3 times the short side. In this geometry, man B is 100√3 = 173.2 meters from the tower.

The tower represents one of two congruent sides of a 45°-45°-90° right triangle. Man A will be standing 100 meters from the tower.

The distance between A and B is 100 +173.2 = 273.2 meters. The men are about 273 meters apart.

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Step-by-step explanation:

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