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grin007 [14]
3 years ago
5

Emma is building a wall around her garden. It has taken 45 minutes,and she is 75% done. What is the total time it will take Emma

to finish building her wall?
Mathematics
2 answers:
Morgarella [4.7K]3 years ago
5 0
Hey there,
It take 45 min to complete 75% of the wall
1% = 45 / 75
      = 0.6
100 % = 0.6 x 100
           = 60 min
It takes her 60 mins or 1 hour to finish building the wall.

Hope this helps :))

~Top♥
kiruha [24]3 years ago
3 0

Answer:

The answer is 60 min.

Step-by-step explanation:

In order to determine the total time, we have to know about direct proportionality.

In math, two variables are said to be in a relation of direct proportionality if one variable increases, the other will increase too and the rate of both is a constant. The value of this constant is called the coefficient of proportionality.

In this case, if emma spends more time in the wall, she will build more wall.

So the constant is:

\frac{time}{percentage}=k\\\frac{45}{75}=k\\0.6=k

Now, applying this constant to a 100%:

T=total time

\frac{T}{100}=k=0.6\\T=100*0.6\\T=60

Finally, the total time is 60 min.

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Juli2301 [7.4K]

Answer:

x= C-a/b

Step-by-step explanation: Ik alllLlLLlllLlLL

(my other account is actingqueen2468 but i forgot my password)

4 0
3 years ago
Debby, Ella and Unique invest $10,000 each into an oil company. Debby owns 2000 $1 common stocks, Ella owns 1000 of 5% $50 prefe
Mashutka [201]

Answer:

Ella has the greatest return in the current year.

Step-by-step explanation:

Debby would receive $0.80 for each of her 2000 common stock in the oil company,hence Debby's return on investment in the current year is $1600($0.80*2000)

Besides,Ella's return on the stock investment in the current year is computed thus:

Ella's return= 5%*1000*$50=$2,500

In addition,Unique's dollar return on the investment is computed as follows:

Unique's return on  investment=4%*2000*$20=$1,600

From the above computations,Ella seems to have the highest return in the current year of $2,500 whereas the two others managed to have $1600 return each

5 0
3 years ago
What is the y-intercept of the equation 2x+3y=6?
Natali [406]
(0,2) is the y-intercept
4 0
3 years ago
Can someone help me with this?
faltersainse [42]

Hello, the answer should be A,B and D options.

First, let's edit the given equations option-by-option.

<h2>Option A:</h2>

-5x+12=5x+12

-5x-5x=-12+12

-10x=0

x=0

There is only one solution which is x=0.

<h2>Option B:</h2>

-5x+12=5x-5

-5x-5x=-12-5

-10x=-17

x=\frac{17}{10}

There is only one solution which is x=\frac{17}{10}.

<h2>Option C:</h2>

-5x+12=-5x-12

-5x+5x=-12-12

0\neq -24

In Math, zero is <u>not equal to</u> minus twenty four (0\neq -24) that's why we do not have any solution in this equation.

<h2>Option D:</h2>

-5x+12=-12x-12

-5x+12x=-12-12

7x=-24

x=-(\frac{24}{7} )

There is only one solution which is x=-(\frac{24}{7} )

8 0
2 years ago
Plzzzzzzzzzzzzzzzzzzz
Darya [45]

Answer:

70x

Step-by-step explanation:

8x8 = 64x then +6x = 70x

4 0
3 years ago
Read 2 more answers
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