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MrRa [10]
2 years ago
15

−3x − 42 >3 please solve this

Mathematics
2 answers:
kolbaska11 [484]2 years ago
7 0

x > -15

Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

-3*x-42-(3)<0

Pull out like factors :

-3x - 45 = -3 • (x + 15)

Divide both sides by -3

Remember to flip the inequality sign:

Subtract 15 from both sides

x > -15

Ghella [55]2 years ago
4 0

Answer:

x < - 15

Step-by-step explanation:

Given

- 3x - 42 > 3 ( add 42 to both sides )

- 3x > 45

Divide both sides by - 3, reversing the symbol as a result of dividing by a negative quantity.

x < - 15

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Doug lives 7. Block away from his school . Each block is about 265 feet long. What is total round-trip dostance,in miles that Do
olga_2 [115]

Answer:

B : 0.7

Step-by-step explanation:

Given:

Doug lives 7. Block away from his school.

Each block is about 265 feet long.

Question asked:

What is total round-trip distance,in miles that Doug walks to and from school each day ?

Solution:

Each block is about = 265 feet

7 Block = 265\times7 = 1855 \ feet

As he lives 7 block away from his school that means his round trip distance is,

7 block ( travel during going to school ) + 7 block ( when return from school )

<em>Therefore, his total round trip is 14 block, means 1855 feet + 1855 feet = 3710 feet.</em>

Now, we have to convert it into miles as here asked: (unitary method)

5280 feet = 1 mile

1 feet = \frac{1}{5280}

3710 feet = \frac{1}{5280}\times3710

               = \frac{3710}{5280} = 0.7 \ miles

Thus, total round-trip distance,in miles that Doug walks to and from school each day is 0.7 miles.

5 0
3 years ago
What is x to the power of 3 divided by x to the power of -5
Veseljchak [2.6K]
X to the power of 8
When dividing powers, you subtract the "small numbers". When multiplying, you add them. 3-(-5) = 8

Hope it helps!
4 0
3 years ago
An isosceles triangle has two sides of equal length, a, and a base, b. The perimeter of the triangle is 15.7 inches, so the equa
Orlov [11]

it cant be a negative number or zero

 so now you are left with 0.5, 2 and 7.9

15.7 - 0.5 = 15.2 ( 15.2/2 = 7.6)  this is possible

15.7 - 2 = 13.7 ( 13.7/2 = 6.85) this is possible

15.7 - 7.9 = 7.8 ( 7.8/2 = 3.9) (7.9/2 = 3.95) since the sides would be shorter than half the base this is not possible to form a triangle


so b can be either 0.5 or 2



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It will take 12 people to finish the turkey
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