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3 years ago

What is 7/15 and 5/14 written as a decimal

1 answer:

5 0

First of all, to change non mixed fractions into a decimal, you divide the numerator (top) by the denominator (bottom)

$\frac{7}{15}$ ⇒7÷15= .467

$\frac{5}{14}$ ⇒5÷14= .357

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PLS HELP ME W/ #8 ASAP

tiny-mole [99]

Answer:

x=2

TU:4(2)-1=7

UB: 3

TB: 10

Step-by-step explanation:

4x-1+2x-1=5x

6x-2=5x

6x=5x+2

subtract 5x from both sides

x=2

TU: (4x-1)

4(2)-1

8-1

TU:4(2)-1=7

UB: (2x-1)

2(2)-1

4-1

UB: 3

TB: 5(2)

TB: 10

7 0

3 years ago

What value could you write in after 3x that would make the equation true for all values of x?

Paraphin [41]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Find the slope of the line that passes through each pair of points.<br> (-3, 4) and (2, -3)

Nady [450]

Answer:

- $\frac{7}{5}$

Step-by-step explanation: this equation works if you have two points

$\frac{ y_{2-y_{1} } }{x_{2}-x_{1} } =slope$

-3-4/2-(-3)=-7/5

5 0

3 years ago

How is the formula for the volume of a sphere derived?

Solnce55 [7]

Answer:

Step-by-step explanation:

From the picture we find that the sphere and the cylinder has equal heights.

i.e. cylinder has height = 2r.

x,y and r form a right triangle with hypotenuse as r.

Hence pythagorean theorem is satisfied

Area of the cross section parallel to it is area of circle with radius y

= $\pi y^2\\=\pi (r^2-x^2)\\=\pir^2-\pix^2$

Volume of cylinder when 2 cones removed = $\frac{4\pir^3}{3}$

Hence volume of sphere = $\frac{4\pir^3}{3}$

4 0

4 years ago

Read 2 more answers

-8(6+5x) = 3n - 5 <br><br> Help please

BaLLatris [955]

$\large\green{\tt Correct \: Question :-}$

$\to\tt -8(6+5x) = 3x - 5$

$\large\gray{\tt Answer :-}$

$\implies$ - 1

$\large\blue{\tt Given :-}$

$\to\tt -8(6+5x) = 3x - 5$

$\large\orange{\tt To \: Find :-}$

$\to\tt Value \: of \: \boxed{\bf x}$

$\large\red{\tt Solution :-}$

$:\implies\tt -8(6+5x) = 3x - 5$

$:\implies\tt - 48 - 40x = 3x - 5$

$:\implies\tt - 40x - 3x = - 5 + 48$

$:\implies\tt - 43x = 43$

$:\implies\tt x = \frac{\cancel{43}}{\cancel{-43}}$

$:\implies\tt x = \frac{\cancel1}{\cancel{- 1}}$

$:\implies\tt x = -1$

$\large\pink{\tt Verification :-}$

We have,

$:\implies\tt -8(6+5x) = 3x - 5$

Substituting the value of x,

$:\implies\tt - 48 - 40 \times ( - 1) = 3 \times ( - 1) - 5$

$:\implies\tt - 48 + 40 = - 3 - 5$

$:\implies\tt - 8 = - 8$

<h3><u>HENCE VERIFIED</u></h3>

4 0

3 years ago