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Ostrovityanka [42]
3 years ago
6

Solve for u -6u+4(u-4)=-30

Mathematics
2 answers:
Lapatulllka [165]3 years ago
8 0

Steps to solve:

-6u + 4(u - 4) = -30

~Distribute

-6u + 4u - 16 = -30

~Combine like terms

-2u - 16 = -30

~Add 16 to both sides

-2u - 16 + 16 = -30 + 16

~Simplify

-2u = -14

~Divide -2 to both sides

-2u/-2 = -14/-2

~Simplify

u = 7

Best of Luck!

vivado [14]3 years ago
5 0

Answer:u=7

Step-by-step explanation:

-6u+4(u-4)=-30

Opening the brackets

-6u+(4u-16)=-30

-6u+4u-16=-30

-2u=-30+16

-2u=-14

-2u/-2=-14/-2

u=7

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Vsevolod [243]

Answer:

401 more people per square mile

Step-by-step explanation:

Find how many people there are per square mile in both cities by dividing the number of people by the number of square miles:

672,800/142.9

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195,100/45.3

= 4307 (Grand Rapids)

Find how many more people per square mile live in Detroit by finding the difference between these two numbers:

4708 - 4307

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So, there are 401 more people per square mile living in Detroit versus Grand Rapids.

7 0
3 years ago
Cynthia rounds a number, x, to one decimal point.
Talja [164]

Answer:

[6.26,6.29]U[6.31,6.34

Step-by-step explanation:

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6 0
3 years ago
A rectangle has a height of 5 and a width of 4x^2 – 2x – 6.
bogdanovich [222]

The area of the rectangle is 20x^{2} -10x-30 units.

Step-by-step explanation:

Step 1:

The area of a rectangle is obtained by multiplying the length with the width of the rectangle.

Considering this a whole rectangle, the length of the rectangle is 5 units and the width is the sum of 4x^{2}, -2x, and -6.

So the length of the rectangle = 5 units and

the width of the rectangle = 4x^{2} -2x-6 units.

The area of a rectangle = (length)(width).

Step 2:

By substituting the known values, we get

The area of the rectangle = (5) (4x^{2} -2x-6) = 20x^{2} -10x-30.

So the area of the rectangle is 20x^{2} -10x-30 units.

3 0
3 years ago
In the past ten years, the population of a city decreased from 90,000 to 75,000 Find the percent decrease.
vfiekz [6]
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3 years ago
What is the first step to solve this equation:<br><br> 11 - 3x = 44
vichka [17]

Answer:

Add 3x to both sides

Step-by-step explanation:

after you add 3x you get 11=3x+44

next you subtract 44 from each side

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7 0
3 years ago
Read 2 more answers
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