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Inessa [10]
3 years ago
15

(-30) - (+40) = (-30) + (-40) explain why this is true

Mathematics
2 answers:
Mariana [72]3 years ago
7 0

Answer:

This is true because negative and positive is positive that why there is a addition sign in the middle and positive 40 becomes negative

Step-by-step explanation:

VikaD [51]3 years ago
6 0
You have to distribute the minus sign into the parentheses and you multiply it.
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Step-by-step explanation:

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3 years ago
What is the value of y? PLEASE EXPLAIN<br> 8.5 = y/3 &lt;------ Fraction
NISA [10]

Answer:

y=25.5

Step-by-step explanation:

To find y, you need to get it by itself. Ask yourself, what is being done to y, then to undo that, do the opposite. For example, if 3 was added to y, you would need to subtract 3 to cancel out the 3. In this case, what is being done to y? It's being divided by 3. So, you multiply by 3 to cancel that out. Whatever you do to one side of an equation, you also have to do to the other. So,

8.5=\frac{y}{3}   Multiply both sides by 3

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5 0
2 years ago
Rewrite 3/35 and 1/10 so they have common denominators
Aleks [24]

Answer:

\frac{6}{70} and \frac{7}{70}

Step-by-step explanation:

The LCM of 35 and 10 is 70.

35×2=70

10×7=70

You got to multiply 3 with 2 and 1 with 7 to make 6/70 and 7/70.

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3 years ago
What is the slope of (1,-2) and (6,-2)
Paha777 [63]

Answer:

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Step-by-step explanation:

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Does anybody know the answer??
Marizza181 [45]

Answer:

Step-by-step explanation:

It A because they are both parallel.

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3 years ago
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