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Tpy6a [65]
3 years ago
15

Triangle ABC is similar to triangle DEF with a ratio of 3/5 If the difference of their

Mathematics
1 answer:
barxatty [35]3 years ago
6 0

9514 1404 393

Answer:

  • ΔABC -- 60 inches
  • ΔDEF -- 100 inches

Step-by-step explanation:

If P is the perimeter of the larger triangle, then 3/5P will be the perimeter of the smaller one. The difference in perimeters is ...

  P -3/5P = 40 in

  2/5P = 40 in

  P = (5/2)(40 in) = 100 in

  3/5P = 3/5(100 in) = 60 in

The smaller triangle perimeter is 60 in; the larger is 100 in.

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3 years ago
Shiloh is 7 years older than Courtney. Shiloh's age is 13 years less than two times Courtney's age. The system below models the
Andrews [41]

I'm afraid I don't see the models you have written about although I do know the answer. (C= Courtney's age, S= Shilo's age)

Shilo is 7 years older then Courtney, which equals to C+7=S.

While at the same time Shilo is 13 years younger then twice Courtney's age. This turns into Cx2-13=S.

c+7=cx2-13. This is the equation, now lets work it out.

Add 13 on each side and you get

c+20=2c

Now we subtract c from each side and we get

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Shilo being 7 years older then Courtney is 27


8 0
3 years ago
Find the total surface area of this cone ​
Eddi Din [679]

Answer:

Step-by-step explanation:

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31.4*76.62

240.5554

I don't know if this is right

5 0
2 years ago
USING the Midpoint Formula , POINT A is at (-3,-5) and point M is at (-0.5,0). what are the coordinates of point B
Rasek [7]

\bf ~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ A(\stackrel{x_1}{-3}~,~\stackrel{y_1}{-5})\qquad B(\stackrel{x_2}{x}~,~\stackrel{y_2}{y}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left( \cfrac{x-3}{2}~~,~~\cfrac{y-5}{2} \right)~~=~~\stackrel{\stackrel{Midpoint}{M}}{(-0.5~,~0)}\implies \begin{cases} \cfrac{x-3}{2}=-0.5\\[1em] x-3=-1\\ \boxed{x= 2}\\ \cline{1-1} \cfrac{y-5}{2}=0\\[1em] y-5=0\\ \boxed{y=5} \end{cases}

7 0
3 years ago
The sum of x and y is 7. The value of y is three more than the value of x. Write a system of equations to model this.
Ilia_Sergeevich [38]

Answer: x= 2 , y= 5 (5+2=7)

Step-by-step explanation:

I don't really know how to put it into an equation- but here's your values?? Sorry if this didn't help ):

6 0
3 years ago
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