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Romashka [77]
3 years ago
9

Freddy is two years old than her brother. Twelve years ago, she was twice as old as he was. How old were they? Equation

Mathematics
1 answer:
Hitman42 [59]3 years ago
8 0
F=2+b
12 years ago
f-12=2(b-12)
f=2+b
2+b-12=2(b-12)
b-10=2b-24
minus b both sides
-10=b-24
add24
14=b

14-12=2
2+2=4

freddy was 4 and brother was 2
they are now 16 and 14
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What is the area of a parallelogram if the coordinates of its vertices are (0, -2), (3, 2), (8,2), and (5,-2)?
Llana [10]

Answer:

The area of the parallelogram is 20 units²

Step-by-step explanation:

* Lets explain how to solve the problem

- The vertices of the parallelogram are (0 , -2) , (3 , 2) , (8 , 2) , (5 , -2)

- The side joining the points (0 , -2) and (5 , -2) is a horizontal side

  because the points have same y-coordinates

- The side joining the points (3 , 2) and (8 , 2) is a horizontal side

  because the points have same y-coordinates

∴ These two sides are parallel bases of the parallelogram

∵ The length of any horizontal side = x2 - x1

∴ The length of the side = 5 - 0 = 5 <em>or</em> 8 - 3 = 5

∴ The length of one base of the parallelogram is 5 units

- The height of this base is the vertical distance between these two

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∵ The length of any vertical distance = y2 - y1

∵ y2 = 2 and y1 = -2 ⇒ the y-coordinates of the parallel bases

∴ The length of the vertical distance = 2 - (-2) = 2 + 2 = 4 units

∵ This vertical distance between the two parallel bases is the height

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∴ The height of the parallelogram is 4 units

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∵ The base = 5 units and the height = 4 units

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7 0
3 years ago
Which answer is correct and why?
Ivanshal [37]
The answer is C.) 62.
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3 0
3 years ago
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ArbitrLikvidat [17]
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3 years ago
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Katyanochek1 [597]

Answer:3/8

Step-by-step explanation:

The simplest form of  

15 /40  is  3 /8 .

Steps to simplifying fractions

Find the GCD (or HCF) of numerator and denominator

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Divide both the numerator and denominator by the GCD

15 ÷ 5

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Reduced fraction:  

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Therefore, 15/40 simplified to lowest terms is 3/8.

3 0
3 years ago
The formula for the volume of a sphere is. What is the formula solved for r?
nataly862011 [7]

Answer:

r = \sqrt[3]{\dfrac{3V}{4 \pi}}

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3 0
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