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Galina-37 [17]
2 years ago
13

-6-2y^2+6x-4x+1+7y^2-y^2

Mathematics
1 answer:
elena-14-01-66 [18.8K]2 years ago
4 0

Answer:

4 y ^2 + 2 x − 5

Step-by-step explanation:

You might be interested in
What is a coterminal angles
navik [9.2K]

Answer: Coterminal Angles are angles who share the same initial side and terminal sides. Finding coterminal angles is as simple as adding or subtracting 360° or 2π to each angle, depending on whether the given angle is in degrees or radians.

6 0
3 years ago
If you bought a stock last year for a price of $139, and it has risen 5.4% since
kumpel [21]

Answer:

<h2>To the nearest cent, the stock will be worth $ 146.51 </h2>

Step-by-step explanation:

Hope this helped ;)

6 0
3 years ago
Tell me please !!!!!!
UkoKoshka [18]

Answer:

(1)

Donna = Pounds 180

Kyra = Pounds 240

(2)

Kelly = Pounds 225

Nelly = Pounds 175

Step-by-step explanation:

(1)

Donna = x

Kyra = x + 60

If Donna spends 1/3 of her money she is left with 2/3 of her money;

2/3 x

Kyra now has twice as much money as Donna can be represented as;

X + 60 = 2 * 2/3 x

X + 60 = 4/3 x

(x + 60)3 = 4x

3x + 180 = 4x

180 = 4x – 3x

180 = x

Donna = 180

Kyra = 180 + 60 = 240

(2)

Kelly = x

Ned = y

Kelly spends 40% of her money. Therefore he is left with 60%;

60/100 x

Nelly spends Euros 40 of his money. Therefore he is left with;

y- 40

If they now have the same amount of money;

60/100 x = y – 40

3/5 x = y – 40

3x = 5y – 200

3x – 5y = -200

Remember Kelly & Ned has Euros 400 in total;

x + y = 400

Now we can solve the simultaneous equation by substitution;

x + y= 400

3x – 5y = -200

3x + 3y = 1200

-

3x – 5y = - 200

=

8y = 1400

Y = 175

X = 225

Kelly = 225

Nelly = 175

Learn More:

brainly.com/question/2273184

brainly.com/question/11876335

#LearnWithBrainly

3 0
3 years ago
Read 2 more answers
300g of bananas cost £1.80. how much does 1kg cost?
amm1812
Maybe try dividing by 300 and timesing by 1000?
4 0
2 years ago
Read 2 more answers
12
vlada-n [284]

Answer:

The last one

Step-by-step explanation:

The standard method for solving an equation like 3x + 5 = 26 is to use

the Subtraction Property of Equality and then the Division Property of

Equality.

3x + 5 = 26

you would have to subtract first to get your answer

so subtract 5 on both sides

3x= 21

then u would have to divide 3 by both sides to get the x alone/ isolated

x= 7

and that is why u should use " Subtraction Property of Equality and then the Division Property of  Equality, " as your method.

5 0
2 years ago
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