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GREYUIT [131]
3 years ago
7

System of equations

Mathematics
1 answer:
nalin [4]3 years ago
4 0

Answer:

The solution of the system of equations is the point (-3,0)

Step-by-step explanation:

we have

-3x+y=9 -----> equation A

2x-y=-6 -----> equation B

Adds equation A and equation B

-3x+y=9\\2x-y=-6\\------\\-3x+2x=9-6\\-x=3\\x=-3

Find the value of y

-3(-3)+y=9

9+y=9

y=9-9=0

The solution of the system of equations is the point (-3,0)

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What is the area of the trapezoid?<br><br><br> 91 in 2<br> 182 in. 2<br> 140 in 2<br> 120 in. 2
mihalych1998 [28]

Answer: 91

Step-by-step explanation:

the equation to find the area of a trapezoid is as follows:

A = (a+b)/2h

So A = 6+20 which is 26

then you divide 26 by two which gives you 13, then multiply by 7

     

3 0
3 years ago
Please helppp<br><br>x+5/2 - x+3/6 = 1
telo118 [61]
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7 0
3 years ago
a falling object travels a distance given by the formula d=5t + 16t^2 ft, where t is measured in seconds. how long will it take
Butoxors [25]

Its given that

d=5t+16t^{2}

We need to find t when d = 74

Therefore, 74=5t+16t^{2} or

16t^{2}+5t-74 = 0

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(t - 2)(16t + 37) = 0

t - 2 = 0 or 16t + 37 = 0

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8 0
3 years ago
Read 2 more answers
36 out of 48 in percent form
aivan3 [116]
It would be .75 which equals 75%
8 0
3 years ago
Please help me with this
aleksandr82 [10.1K]

Answer:

B.  $19

Step-by-step explanation:

Approximate prices:

1/4 lb ham = 0.25 * $6 = $1.50

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1 lb roast beef = $7

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Add the approximate individual prices:

$1.50 + $7.50 + $7 + $3 = $19

3 0
3 years ago
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