3 years ago

Solve by elimination 8x-6y=-20 -16x+7y=30

Mathematics

1 answer:

guajiro [1.7K]3 years ago

7 0

The answer is

X=-1

Y=2

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4x²y + 3y²z - 2xy² - 3x²y + 4y²z

pochemuha

Answer:

=x2y−2xy2+7y2z

Step-by-step explanation:

Simplify

Let's simplify step-by-step.

4x2y+3y2z−2xy2−3x2y+4y2z

=4x2y+3y2z+−2xy2+−3x2y+4y2z

Combine Like Terms:

=4x2y+3y2z+−2xy2+−3x2y+4y2z

=(4x2y+−3x2y)+(−2xy2)+(3y2z+4y2z)

=x2y+−2xy2+7y2z

Answer:

=x2y−2xy2+7y2z

7 0

3 years ago

How would u know the base times height times length from the triangle

xeze [42]

U would multiply the number on the side and the number on the bottom. hope that helps :)

7 0

3 years ago

Bag A has 20% more red balls than bag

Crank

Answer:

Step-by-step explanation:

Let a = number of balls in bag A.

Let b = number of balls in bag B.

a = 1.2b

a - 5 = b + 5

1.2b - 5 = b + 5

0.2b = 10

b = 50

Answer: 50

3 0

3 years ago

Read 2 more answers

The hotel room tax in Festivity City is calculated using the function

zysi [14]

Answer: 11.70

Step-by-step explanation:

6 0

3 years ago

Find the area of the polygon with the given vertices. N(-2,1), P(3,1), Q(3, -1), R(-2, -1)

Novay_Z [31]

Answer:

Step-by-step explanation:

N(-2,1), P(3,1), Q(3, -1), R(-2, -1)

The polygon is the rectangle with sides 2 and 5

So the area is 2*5 = 10

see attached

6 0

3 years ago