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Flura [38]
2 years ago
14

Pls help asap!! this is due really soon

Mathematics
1 answer:
s2008m [1.1K]2 years ago
6 0

Answer:

EF=20

Step-by-step explanation:

EF is midsegment of the triangle so the equation is

AB/2=EF

7x-2/2=2x+8

7x-2=4x+16

7x-4x=16+2

3x=18

x=18/3

x=6

EF=2×6+8

=12+8

=20

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A video game system and several games are sold for $652. The cost of the games is 3 times as much as the cost of the system. Fin
vesna_86 [32]

Answer:

The cost of the system is $163 and The cost of the games is $489

Step-by-step explanation:

∵ A video game system and several games are sold for $652

∵ The cost of the games is 3 times as much as the cost of the system

→ Assume that the cost of the system is $x

∵ The cost of the system = x

∴ The cost of the games = 3 × x = 3x

∵ The total cost of the system and the games = 652

→ Equate the sum of the cost of the system and the cost of the games

   by 652

∴ x + 3x = 652

→ Add the like terms in the left side

∴ 4x = 652

→ Divide both sides by 4 to find x

∵ \frac{4x}{4}=\frac{652}{4}

∴ x = 163

∵ The cost of the system = x

∴ The cost of the system is $163

∵ The cost of the games = 3x

∴ The cost of the games = 3(163) = 489

∴ The cost of the games is $489

4 0
3 years ago
2. Find the perimeter and area of a square with a 7-ft side.
Rina8888 [55]

Answer:

Step-by-step explanation:

Perimeter 4L = 28

Area L^2 = 49

7 0
3 years ago
2. Find the missing side length.<br> 9<br> 37°<br> 6
svetoff [14.1K]

Answer:

I found it! It's over here!!

Now what do I do with it?

8 0
3 years ago
Need Help ASAP!! 100 points andbranliest plz pleople plz help.
mafiozo [28]

Answer:

what grade are you in so then I could get the answer

4 0
3 years ago
Read 2 more answers
Annie walks 15 feet away from her house and places a mirror on the ground. She backs 4 feet away from the mirror so that she can
artcher [175]

Answer:

The house is 18.75 feet tall

Step-by-step explanation:

The triangles are similar by the AA postulate.  

We are given the length of the bottom sides of the triangles, 4 and 15 respectively.  

Thus, the ratio is 4:15

We are also given the height of Annie's eyes, which is 5 feet. The height of the side that corresponds to the house is 5, so we can set up a proportion.

\frac{4}{15}  = \frac{5}{x} \\4x = (5*15) = 75\\x = \frac{74}{4} \\x = 18.75

Thus, the house is 18.75 feet tall.

5 0
3 years ago
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