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jolli1 [7]
3 years ago
13

PLEASE HELP WITH MATH AND BEST GETS BRAINLIEST. PLEASE SHOW WORK.

Mathematics
2 answers:
leonid [27]3 years ago
4 0
Distribute
remember the -1 infront of the second set of partnhasees
a(b+c)=ab+ac
2(3/5x+3)=6/5x+6
-1(2/3x-1)=-2/3x+1
we now have
6/5x+6-2/3x+1
gropu like terms
6/5x-2/3x+6+1
add like terms
6/5x-2/3x+7
make bottom numbers same
6/5x times 3/3=18/15x
2/3x times 5/5=10/15x
18/15x-10/15x+7
8/15x+7
equivilent is 8/15x+7
Verizon [17]3 years ago
3 0
To solve this, we must multiply what's outside of the parentheses by what is inside. 
For the first parenthetic set, we can see that we are multiplying the values by 2, so we do it this way:

2( \frac{3}{5}x + 3) = (2 *  \frac{3}{5}x) + (2 * 3) =  \frac{6}{5}x + 6

For the second part of the expression, we don't see any value, but we understand that there is a negative 1 that we don't see, because of the minus sign between the two parenthetic sets.
So we end up with this:

- (\frac{2}{3}x - 1) = (-1 *  \frac{2}{3}x) + (-1 * -1) = (\frac{-2}{3}x + 1)

So, without parentheses, the expression looks like this:

\frac{6}{5}x + 6 + \frac{-2}{3}x + 1

Which could be further reduced to

\frac{8}{15}x + 7

Hope that helped! =)
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Kitty [74]

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5 0
3 years ago
The length of a planet's orbit around a star is approximately 17,650,000 km.
daser333 [38]

Answer:

1150 km/hr

Step-by-step explanation:

Formula for Average Speed is given as = Distance in Kilometers/ Time in Hours

In the question we are given the following parameters.

The length of a planet's orbit around a star = Distance = 17,650,000 km.

Time taken to complete a full orbit = 640 Earth days

Step 1

We need to convert the time in days to hours

1 Earth day = 24 hours

640 Earth days =

We cross multiply

640 Earth days × 24 hours

= 15360 hours.

Step 2

Average Speed = Distance in Kilometers/ Time in Hours

Average Speed = 17,650,000 km. /15360 hours

Average Speed = 1149.0885417 km/hr

Approximately to 3 significant figures=

1150 km/hr

Therefore, the planets average speed in kmh-1 to 3sf is 1150 km/hr

8 0
3 years ago
Quick i dont have time
Volgvan

Answer:

angle SRT = 180 -44 = 136 °

Step-by-step explanation:

mark me as brainliest ❤️

5 0
3 years ago
Write the equation of a line that goes through the points (-7,9) and (-4,3).
solong [7]

Answer:

y= -2x - 5

Step-by-step explanation:

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3 0
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For each expression, use the distributive property to write an equivalent expression.
Vlada [557]

Here u go refer to the attachment below! v

8 0
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