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2 years ago

Help me please someone…..

Mathematics

1 answer:

Amanda [17]2 years ago

3 0

Answer:

Step-by-step explanation:

1. First, let's find the common ratio between the sides we know.

$\frac{XY}{AB} = \frac{XZ}{AC}$
$\frac{8}{2} = \frac{12}{3}$
$4$

2. The number 4 is the scale factor, so we multiply 6 by 4 to get the missing side length.

$6 * 4$
$24$

Therefore, the missing side length is 24.

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How much sugar did Tara used in the donut topping

maxonik [38]

Answer:

12 kg of sugar is used by Tera to makes 30 cups of donut topping by mixing sugar and cinnamon the ratio of sugar to cinnamon.

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3 years ago

The sum of the ages of Berma, her mother Rinna and her father Erwin is 80. Two years from now, Rinna’s age will be 13 less than

jekas [21]

Answer: Berma is 5 years old

Rinna is 38 years old

Erwin is 37 years old

Step-by-step explanation:

Let x represent Berma's age

Let y represent Rinna's age

Let z represent Erwin's age

Since the sum of their ages is 80,

x + y + z = 80 - - - - - - -1

Two years from now, Rinna’s age will be 13 less than the sum of Erwin’s age and twice Berma’s age. This means that

y +2 = [ (z+2) + 2(x+2) ] - 13

y +2 = z + 2 + 2x + 4 - 13

2x - y + z = 13 + 2 - 4 -2

2x - y + z = 9 - - - - - - -2

Three years ago, 15 times Berma’s age was 5 less than the age of Rinna. It means that

15(x - 3) = (y - 3) - 5

15x - 45 = y - 3 - 5

15x - y = - 8 + 45

15x - y = 37 - - - - - - - -3

From equation 3, y = 15x - 37

Substituting y = 15x - 37 into equation 1 and equation 2, it becomes

x + 15x - 37 + z = 80

16x + z = 80 + 37 = 117 - - - - - - 4

2x - 15x + 37 + z = 9

-13x + 2 = -28 - - - - - - - - -5

subtracting equation 5 from equation 4,

29x = 145

x = 145/29 = 5

y = 15x - 37

y = 15×5 -37

y = 38

Substituting x= 5 and y = 38 into equation 1, it becomes

5 + 38 + z = 80

z = 80 - 43

z = 37

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3 years ago

Solving the Quadratic equations by completing the square: 2x^2-7x+2=0

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Step-by-step explanation:

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4 years ago

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Distance(Mercury, Sun) = 5.8 x 10^7
distance(Venus, Sun) = 1.1 x 10^8

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The subtraction is a little easier if you borrow a power of 10 from the 10^8, multiplying 1.1 by 10.

$\rm 11.0\times10^7-5.8\times10^7$

simply subtract 5.8 from 11.0.
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3 years ago

Read 2 more answers

If a day on Mars is 9.98 x 10^4 sec long, how many earth days are in a Mars' day?

mr Goodwill [35]

Use the next convertion factors:

60 seconds are equal to 1 minute

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1 year ago