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aivan3 [116]
2 years ago
8

Stefanie is three times as old as Hannah. Four years ago, the sum of their ages was 28. How old are they now? Be sure to define

your variable(s)
Mathematics
1 answer:
siniylev [52]2 years ago
4 0

Stefanie's age is 54 and Hannah's age is 18

<h3>How to determine their current ages?</h3>

Let x represent Stefanie's age and y represent Hannah's age

<u>Presently</u>

x = 3y

<u>Four years ago</u>

x - 4 + y - 4 = 28

Substitute x = 3y in the above equation

3y - 4 + y - 4 = 28

Evaluate the like terms

2y = 36

Divide both sides by 2

y = 18

Substitute y = 18 in x = 3y

x = 3 * 18

Evaluate

x = 54

Hence, Stefanie's age is 54 and Hannah's age is 18

Read more about equations at:

brainly.com/question/2972832

#SPJ1

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A boat is heading towards a lighthouse, where Luis is watching from a vertical distance of 107 feet above the water. Luis measur
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Using the slope concept, it is found that the distance from point A to point B is of 465 feet.

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To find the horizontal position at point A, we have that:

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For the horizontal position at point B, we have that:

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6 0
1 year ago
Giving brainlistto the right answer
Mrac [35]

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-19 <  -18

-19 < -17

-19 < -16

hope this helps

have a good day :)

Step-by-step explanation:

4 0
2 years ago
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4 0
3 years ago
I NEED HELP PLEASE, THANKS!
Talja [164]

The amount of lines of symmetry of a shape is equal to the number of sides that shape has.

A heptagon has 7 sides, so, there are 7 lines of symmetry.

Best of Luck!

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