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3 years ago

How to learn to divide

Mathematics

1 answer:

ElenaW [278]3 years ago

4 0

Answer:

EX. 210/6

Step 1. Set up the equation, 210/6

Step 2. Divide the first digit/number 6 x 30 = 180 210 - 180 = 30

Step 3. rewrite the equation that is left, 30/6 6 x 5 = 30 30 - 30 = 0

Step 4. Only if need be for another equation, repeat step 1 and 2 until you have your answer

The Answer to the equation 210/6 is 35

Try 426/6 by yourself, please don't use a calculator.

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Someone can you help me please

allochka39001 [22]

Answer:

the first one after 3 would be 4. now the numbers that have a four in the tens place, the numbers after that would be the ones that you would add to the leaf part. same as 8.

Example:

4 | 0 5 7

Step-by-step explanation:

6 0

3 years ago

Nina and Jo both ran an 8 km race. Nina took 55 minutes to run the whole race. Jo started the race 3 minutes later than Nina but

grin007 [14]

Answer:

Step-by-step explanation:

First we figure out how fast Nina can run. If Nina can run 8 km in 55 minutes, then her rate is

$\frac{8km}{55min}=.145\frac{km}{min}$ and we can use that in a d = rt table:

d = r * t

Nina .145

Now we can fill in the distance which is 6 for both, since that is the distance where they met:

d = r * t

Nina 6 = .145

Jo 6 =

Now we go to the info given about the time. If Jo started the race 3 minutes after Nina, that means that Nina is running 3 minutes longer than Jo. Filling in the time info:

d = r * t

Nina 6 = .145 * t + 3

Jo 6 = r * t

As you can see, right now we have 2 unknowns in Jo's row. But we don't have to! We will go to Nina's row where the only unknown is time and solve for t. If d = rt, then

6 = .145(t + 3) and

6 = .145t + .435 and

5.55 = .145t so

t = 38.379 minutes. This means that Jo was running 38.379 minutes when she caught up to Nina (it took Nina 3 minutes longer than that to go 6 km since she was already running for 3 minutes when Jo started the race). If Jo's time is 38.379, we can use that in her row for t and solve for r. If d = rt, then

6 = r(38.379) and

r = .16 km/min

Let's check it without the rounding (rounding takes away from the accuracy). If 6 = .145(t + 3) and Nina's rate not rounded is .145454545 and t = 38.37931034, then, rewriting without rounding:

6 should equal .145454545( 38.37931034 + 3)

6 ?=? .145454545(41.37931034)

6 ?=? 6.0 so

Jo's rate is .16 km/min rounded

6 0

3 years ago

1/5 divided by 3 is what

Vsevolod [243]

Answer:

the answer would be 1/15, or approximately 0.067.

Step-by-step explanation:

8 0

3 years ago

Enter <, >, or = to make the

AVprozaik [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

Using quadratic equation: help me solve it <img src="https://tex.z-dn.net/?f=10x%20-%20%20%5Cfrac%7B1%7D%7Bx%20%7D%20%20%3

pochemuha

Answer:

$10x - \frac{1}{x} = 3 \\ 10x = 3 + \frac{1}{x} \\ 10x = \frac{3x + 1}{x} \\ 10x \times x = 3x + 1 \\ 10 {x}^{2} = 3x + 1 \\ 10 {x}^{2} - 3x - 1 = 0 \\ 10 {x}^{2} - 5x + 2x - 1 = 0 \\ 5x(2x - 1) + 1(2x - 1) = 0 \\ (5x + 1)(2x - 1) = 0 \\ \\ 5x + 1 = 0 \\ 5x = - 1 \\ x = \frac{ - 1}{5} \\ \\ 2x - 1 = 0 \\ 2x = 1 \\ x = \frac{1}{2}$

hope this helps you.

Have a nice day!

4 0

3 years ago