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4 years ago

Help me on this plz...

Mathematics

1 answer:

Rina8888 [55]4 years ago

6 0

Answer:

formula 2πr

Step-by-step explanation:

i.e 2*π*6 = 12π

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How are 420 and 4200 different

ikadub [295]

Answer:

420 is in the hundreds while 4200 is in the thousands

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Solve for w. 5w + 9z = 2z + 3w w = z w = z w = –2z w = –7z

In-s [12.5K]

We have been given an equation and we are asked to find value of w from our given equation.

$5w+9z=2z+3w$

First of all we will subtract 3w from both sides of our equation.

$5w-3w+9z=2z+3w-3w$

$5w-3w+9z=2z$

Now let us subtract 9z from both sides of our equation.

$5w-3w+9z-9z=2z-9z$

$5w-3w=2z-9z$

$(5-3)w=(2-9)z$

$2w=-7z$

Now let us divide both sides of our equation by 2.

$\frac{2w}{2}= \frac{-7z}{2}$

Upon cancelling 2 from left side of our equation we will get,

$w=\frac{-7}{2} z$

Therefore, we can see that $w=\frac{-7z}{2}$ .

6 0

4 years ago

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Brian Was thinking of a number. Brian adds 8 to it, then doubles it and gets an answer of 16.4. What was the original number?

viva [34]

Answer:

The number is 0.2

Step-by-step explanation:

Write an equation for it:

Say that the number was called x

2(x +8) =16.4

Brain added 8 to the number (x) and then doubled it which is the 2

Times out the brackets 2x + 16 = 16.4

Take away 16 from both sides

2x = 0.4

0.4 / 2 = 0.2

3 0

4 years ago

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P=$4500 r=6% t=3 years what is I

Firdavs [7]

Not really sure about this one

5 0

3 years ago

show your work please and thank you. would rlly apperciate some help bc lately on thius app i havent got no help.

yan [13]

Answer: k=54/79

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

Step 2: Subtract 16/3k from both sides.

Step 3: Subtract 5/2 from both sides.

Step 4: Multiply both sides by 12/(-79).

See attachment for further explanation

3 0

3 years ago