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3 years ago

2(n+7)=14+2n and 1-x=7x-(8x-6)

1 answer:

3 0

2n+14=14+2n so this one as an infinite number of solutions. The second one 1-x=-x-6 so you add x on both sides which results in it having no solutions.

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Is this question dealing with surface area or volume?? (Don’t mind the w•l•h)

marin [14]

Answer:

Step-by-step explanation:

First you must find the number of cubic feet in the pool. (That's volume)

Formula

V = l*w*h

Givens

l =38
w = 22
w = 8

Solution

Volume

V = 38 * 22 * 8

V = 6688 cubic feet.

Gallons

1 cubic foot = 7.5 gallons

6688 ft^3 = x

Proportion

1/6688 = 7.5 / x Cross Multiply

x * 1 = 7.5 * 6688

x = 50160 gallons

4 0

3 years ago

Find the area of a square with the side lengths of (1/2x+2)

Pavlova-9 [17]

Answer: There are no like terms

Step-by-step explanation:

8 0

3 years ago

Solve the Equation 2x-3=14 -x+3y=-6

andriy [413]

Step-by-step explanation:

If you lost "y" in the first equation.

$\underline{+\left\{\begin{array}{ccc}2x-3y=14\\-x+3y=-6\end{array}\right}\qquad\text{add both sides of the equations}\\\\.\qquad x=8\\\\\text{Put the value of x to the first equation:}\\\\2(8)-3y=14\\16-3y=14\qquad\text{subtract 16 from both sides}\\-3y=-2\qquad\text{divide both sides by (-3)}\\y=\dfrac{2}{3}\\\boxed{x=8,\ y=\dfrac{2}{3}}$

If first equation is correct.

$2x-3=14\qquad\text{add 3 to both sides}\\2x=17\qquad\text{divide both sides by 2}\\x=8.5\\\\\text{Put the value of x to the second equation:}\\-8.5+3y=-6\qquad\text{add 8.5 to both sides}\\3y=2.5\qquad\text{divide both sides by 3}\\y=\dfrac{2.5}{3}\\y=\dfrac{25}{30}\\y=\dfrac{5}{6}\\\\\boxed{x=8.5,\ y=\dfrac{5}{6}}$

6 0

3 years ago

How many miles around is the earth??

Nataly_w [17]

The answer is 40 miles around it

8 0

3 years ago

Read 2 more answers

Which of the filling units are units of length

dimaraw [331]

Answer:

The SI unit for length is the meter (abbreviated m); its definition has also changed over time to become more accurate and precise. The meter was first defined in 1791 as 1/10,000,000 of the distance from the equator to the North Pole.

3 0

3 years ago