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Soloha48 [4]
2 years ago
8

1

Mathematics
2 answers:
Mashutka [201]2 years ago
8 0

Answer:

y = 9 cm

Step-by-step explanation:

The 2 triangles are similar ( by AA postulate ) , then the ratios of corresponding sides are in proportion , that is

\frac{y}{6} = \frac{15}{10} = 1.5 ( multiply both sides by 6 )

y = 6 × 1.5 = 9 cm

zloy xaker [14]2 years ago
6 0

The value of y from the diagram is 9

<h3>Similar shapes</h3>

From the given figure, the shapes are similar, using the similarity theorem of triangles, you ill have;

6/10 = y/15

Cross multiply

10y = 15* 10

10y = 90

y = 90/10

y = 9

Hence the value of y from the diagram is 9

Learn more on similar shapes here: brainly.com/question/2644832

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Answer:

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Step-by-step explanation:

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7 0
3 years ago
The sum of 2 numbers (x and y) is 20, and their product is 51. What are the values of x and y
Murljashka [212]

Answer: 13&7

Step-by-step explanation:

The sum of two numbers x&y is 20

Product of the 2numbers xy is 51

X+y=20......equation 1

XY=51.........equation 2

X=20-y.......equation 3

Substitute for x inequation 3 into equation 2

So we have;

(20-y)y=51

Open the bracket

20y-y^2=51

Collect like terms,so we have

Y2-20y+51=0

Factorise

Factors of 51 is 13&7

So -13-7=-20 &-13×-7=51

Substitute

Y2-13y-7y+51=0

Y(y-13)-7(y-13)=0

(Y-7)(y-13)=0

Y-7=0

Y=7 or

Y-13=0

Y=13

Y=13 or 7

Substitute for y in equation 1

X+y=20

X+7=20

X=20-7

X=13 or

X+13=20

X=20-13

X=7

Therefore, X &Y = 13 &7

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Shawna has $435.15 in her savings
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Answer:

  H.  $360.71

Step-by-step explanation:

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