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liq [111]
3 years ago
10

What is the additive of -7

Mathematics
2 answers:
Burka [1]3 years ago
6 0

It i 7 beacause -7, on a number line, is the oposite length of 7. Therefore, 7 is the additive of -7

gregori [183]3 years ago
3 0

it would be positive 7 i believe

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Two families went to Rollercoaster World.
Alona [7]

Answer:

Children ticket cost $30 and adult ticket costs $40.

Step-by-step explanation:

Given that:

x = price of a child ticket

y = price of an adult ticket

According to given statement;

3x+2y=170     Eqn 1

4x+6y=360    Eqn 2

Multiplying Eqn 1 by 3

3(3x+2y=170)

9x+6y=510      Eqn 3

Subtracting Eqn 2 from Eqn 3

(9x+6y)-(4x+6y)=510-360

9x+6y-4x-6y=150

5x=150

Dividing both sides by 5

\frac{5x}{5}=\frac{150}{5}\\x=30

Putting x=30 in Eqn 1

3(30)+2y=170

90+2y=170

2y = 170-90

2y = 80

Dividing both sides by 2

\frac{2y}{2}=\frac{80}{2}\\y=40

Hence,

Children ticket cost $30 and adult ticket costs $40.

6 0
3 years ago
Help me please thanks
Svetach [21]
I think it's along the y-axis..... 
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Answer:

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Step-by-step explanation:

8.5 / 0.5

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Read 2 more answers
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