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N76 [4]
3 years ago
9

If A Triangle Has A Height Of 12 Inches And A Base Of 5 Inches What's Its Area

Mathematics
1 answer:
laiz [17]3 years ago
4 0
A = 1/2bh = 1/2(5)(12)
A = 60/2 = 30
answer
30 in^2
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2x − 5y = 16 <br>3x + 2y = 5 <br>can you also explain how you did it. Thanks :)
Reptile [31]

Answer:

x=3

y=-2

Step-by-step explanation:

2x - 5y = 16

3x + 2y = 5

Solve for x in the first equation.

2x - 5y = 16

2x = 16 + 5y

x = (16 + 5y)/2

x = 8 + 5/2y

Put x as 8 + 5/2y in the second equation and solve for y.

3(8+5/2y) + 2y = 5

24+15/2y + 2y = 5

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19/2y = 5-24

19/2y = -19

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Put y as -2 in the first equation and solve for x.

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6 0
3 years ago
Read 2 more answers
Please
igomit [66]

<span>x=1/4y+2</span>

−4x+3y=4-------> substitution method

<span> -4(1/4y+2)+3y=4</span>

-y-8+3y=4- --------> 2y=4+8- ----->y=6

x=1/4y+2- -----> ¼(6)+2=7/2

 the answer is (7/2,6)

5 0
3 years ago
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