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4 years ago

Show steps and answer for this fraction .

Mathematics

1 answer:

Olenka [21]4 years ago

4 0

-5 + i / 2i
-5 + i (2i) / 2i (2i)
-10i + i^2
i^2 - 10i

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Five men completed a task in 36 hours and 45 minutes. How long in hours and minutes would it take three men to complete the same

TiliK225 [7]

The easiest way for me to do this is by the mins.

There are 60 mins in 1 hour so do 36 x 60

then add 45

so you're working with 2,205 mins. So let's divide by the 3 men instead...

735 now lets reverse engineer this...

735 / 60(mins)

12 hours 25 mins...

now lets add that to our original....

49 hours and 5 mins.

I could be wrong but as far as I'm looking at it seems like a good way to answer. anyone is welcome to check my work.

Another way to look at this is the same 2205 mins, but as a fraction 5/5 3/5

3/5 is .60 percent of 5/5 so multiply 2205 by .60

264.6

now divide by 60 4.41

Now add to first...

41 hours 43 mins

7 0

3 years ago

Phil is riding his bike. He rides 46 miles in 4 hours, 57.5 miles in 5 hours, and 69 miles in 6 hours. Find the constant of prop

FromTheMoon [43]

Answer:

The constant of proportionality k = 11.5.

The equation will be: $\mathbf{y=11.5(x)}$

Step-by-step explanation:

If x represents number of hours than y represents miles

We are given:

x y

4 46

5 57.5

6 69

The constant of proportionality can be found using formula: $k=\frac{y}{x}$

Putting values and finding k

x y k ( $k=\frac{y}{x}$ )

4 46 11.5

5 57.5 11.5

6 69 11.5

So, the constant of proportionality k = 11.5

Now, The equation will be:

$k=\frac{y}{x}\\or \\y=kx\\Put \ k=11.5\\y=11.5(x)$

So, the equation will be: $\mathbf{y=11.5(x)}$

4 0

3 years ago

Please help correct answer will get brainliest

e-lub [12.9K]

Answer:X= 10.1

Angle answer is correct

Step-by-step explanation: 7X+1+108.3=180

7X+109.3=180

-109.3

7X= 70.7

Divide by 7

X = 10.1

3 0

3 years ago

You are driving from Show Low to Portland, Oregon. The trip will be 1,345 miles total. So

dusya [7]

$\huge \boxed{\mathfrak{Question} \downarrow}$

You are driving from Show Low to Portland, Oregon. The trip will be 1,345 miles total. So far, you have driven 3/5 of the way to Portland. How many miles do you have left to drive?

$\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}$

Miles to be driven in total = 1, 345 miles
Fraction of miles driven = 3/5
Fraction of miles left to be driven = 2/5 [5/5 - 3/5 = 2/5]
Miles left to be driven = ?

Now, let's solve it.

$\sf1345 \times \frac{2}{5} \\ \sf = \bcancel{1345} \times \frac{2}{ \bcancel{5}} \\ \sf = 269 \times 2 \\ = \boxed{ \boxed{ \bf \: 538}}$

So, the miles left to be driven by you is 538 miles.

6 0

3 years ago

To prepare a batch of cookies a factory uses 4/5 barrels of oatmeal in each batch. The factory used 4 4/5 barrels of oatmeal on

babymother [125]

Answer:

Step-by-step explanation:

4 4/5= 24/5 24/5\4/5=6/5= 1/15

6 0

4 years ago