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2 years ago

Which of the following expressions are equivalent to 7.2 - 3.6?

Mathematics

2 answers:

Natalka [10]2 years ago

8 0

B and c
This is true because adding a negative is the same as subtracting

GuDViN [60]2 years ago

8 0

Answer:

B and C

Step-by-step explanation:

7.2 - 3.6 is the original equation

B states that 7.2 + -3.6 is equivalent, and it is right because and positive and negative multiplied by each other gives a negative

C states that 7.2 + (-3.6) is equivalent, and it is also correct because it would still be a negative number because its subtracting

A and D would just add up so it wouldn't be equivalent to 7.2 - 3.6

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Solve the given system of equations2y=x+93x-6y=-15

attashe74 [19]

Answer:

No solutions

Explanation:

The given system of equations is

2y = x + 9

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To solve the system, we first need to solve the first equation for x, so

2y = x + 9

2y - 9 = x + 9 - 9

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7 months ago

A mass weighing 3 lb stretches a spring 3 in. If the mass is pushed upward, contracting the spring a distance of 1 in and then s

Bas_tet [7]

Answer:

Step-by-step explanation:

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