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3 years ago

Solve each absolute value in number line. 11. 2x - +3>4

Mathematics

1 answer:

loris [4]3 years ago

6 0

Answer:

$x>\frac{7}{2}$

Step-by-step explanation:

2x - 3 > 4

Add 3 to both sides.

2x - 3 + 3 > 4 + 3

Simplify.

2x > 7

Divide both sides by 2.

$\frac{2x}{2} >\frac{7}{2}$

Simplify.

$x>\frac{7}{2}$

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Find two numbers, if their sum is 49 and their difference is 1/2 .

amm1812

Answer:

$x=24\frac{3}{4}\\ y=24\frac{1}{4}$

Step-by-step explanation:

Let the two numbers be x and y

So we have:

$x +y = 49\\x-y=\frac{1}{2}$

using the elimination method, add the two equations together:

$2x=49\frac{1}{2} \\2x=\frac{99}{2}$

solve for x:

$x=\frac{99}{4}\\x=24\frac{3}{4}$

substitute our value for x back into the first equation we made:

$x+y=49\\(\frac{99}{4}) + y=49\\y=49-\frac{99}{4}\\y=\frac{97}{4} \\ y=24\frac{1}{4}$

therefore,

$x=24\frac{3}{4}\\ y=24\frac{1}{4}$

6 0

3 years ago

what about this one? is it correct? I am all done but would like to check if they are alright since I am so so rounding

Nutka1998 [239]

They're all correct! Nice job :)

7 0

4 years ago

A cylinder and a cone have the same volume. The cylinder has radius x and height y. The cone has radius 2x. Find the height of t

weqwewe [10]

V(cylinder)=πR²H
Radius of the cylinder R=x, height of the cylinder H=y.
We can write for the cylinder
V(cylinder)=πx²y

V(cone) =(1/3)πr²h
Radius of the cone r=2x.
We can write for the cone
V(cone)= (1/3)π(2x)²h=(1/3)π *4*x²h

V(cylinder) =V(cone)
πx²y=(1/3)π *4*x²h
y=(4/3)*h
h=(3/4)*y

7 0

3 years ago

Pls help me ????????????

ArbitrLikvidat [17]

Answer:

24 books

Step-by-step explanation:

5 0

4 years ago

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