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Vsevolod [243]
3 years ago
9

7(-10 + 3x) = -49 Please explain aswell!

Mathematics
1 answer:
bixtya [17]3 years ago
6 0

Answer:

x=1

Step-by-step explanation:

To get the 7 away, we need to multiply it into the parentheses.

7*-10= -70

7*3=21

-70+21x= -49

Now we combine like terms and we move 70 over. Because we're moving it to the other side of the equation, it becomes positive.

21x= -49+70

-49+70 is the same as 70-49

70-49= 21

Now we put it together.

21x=21

To get the x by itself, we need to divide 21 on both sides.

21x/21= 21/21

21/21=1

x=1

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Answer:

10m/s,15m/s,20m/s,5m/s

Step-by-step explanation:

Speed = distance / time

a) distance = 100m , time = 10s

Speed = distance / time

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d) distance = 1000m , time = 200s

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7 0
3 years ago
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5 0
3 years ago
What is Five thousand, three hundred one and ninety-six thousandths
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Answer:

500030196000

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Which absolute value expression represents the distance between 3 and −5 on a number line?
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Answer:

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Step-by-step explanation:

Here the point A is given as 3 on number line.

Point B is given as -5 on number line.

To find :  IA-BI

The distance between any two point A and B is given as IA-BI.

Now, to find the absolute value:

IA-BI = I  (3) - (-5)I

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= 8 units

or, IA-BI = 8 units

Hence, on the number line, the distance between -5 and 3 is 8 units.

And, to represent  the distance between 3 and −5 on a number line,  the correct expression is  I(3) - (-5)I .

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