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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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Ganezh [65]

Answer:

3

Step-by-step explanation:

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3 years ago
A dress listed from $119 is discounted 25%. What is the sale price of the dress including a 7 1/2 state sales tax?
Daniel [21]
If it is discounted 25%, then u r actually paying 75%

0.75(119) = 89.25 (without tax)

sales tax = 7 1/2% = 7.5% = 0.075
89.25(1.075) = $ 95.94 <===


3 0
3 years ago
Read 2 more answers
Question 1-4
aalyn [17]

Answer:

step 2 to step 3

Step-by-step explanation:

step 2

2x - 7 = 3 ( add 7 to both sides )

2x = 10 ( error was made here in that they had - 4 )

7 0
2 years ago
a gardener is designing a circular garden. On the blueprint, the garden has a diameter of 16 centimeters. The blueprint has a sc
Ede4ka [16]

Answer:

The actual area of the garden is 1256 square feet.

Step-by-step explanation:

Given:

A gardener is designing a circular garden.

On the blueprint, the garden has a diameter of 16 centimeters.

The blueprint has a scale of two centimeters to five feet.

Now, to find the actual area of the garden.

Let the actual diameter of the garden be x\ feet.

And the diameter of the garden on blueprint = 16\ centimeters.

As, given:

The blueprint has a scale of two centimeters to five feet.

2 centimeters is equivalent to 5 feet.

Thus, 16 centimeters is equivalent to x\ feet.

Now, to get the actual diameter by using cross multiplication method:

\frac{2}{5} =\frac{16}{x}

By cross multiplying we get:

2x=80

Dividing both sides by 2 we get:

x=40\ feet.

<em>Thus, the actual diameter of the garden is 40 feet.</em>

Now, to get the area of the garden we get the radius and then put the formula of area:

Radius = \frac{Diameter}{2}

Radius(r)= \frac{40}{2}=20\ feet.

Area =\pi r^2.

Area=3.14\times 20^2

Area=3.14\times 400

Area=1256\ square\ feet.

Therefore, the actual area of the garden is 1256 square feet.

3 0
3 years ago
Who ever complete this gets brainlist and i WILL remember to give you​
Romashka [77]

Answer:

1. <em>6</em>

2. There will be two middle numbers. 18 and 4. Add them

(18+4)=22

Now divide by 2

(22/2)

Ans. 11

3. There will be two middle numbers. 50 and 30. Add them

(50+30)=70

Now divide by 2

(70/2)

Ans. 35

4. 26

5. 76

6. There will be two middle numbers. 11 and 10. Add them

(11+10)=21

Now divide by 2

(21/2)

Ans. 10.5

7. There will be two middle numbers. 5 and 1. Add them

(5+1)=6

Now divide by 2

(6/2)

Ans. 3

8. There will be two middle numbers. 2 and 4. Add them

(2+4)=6

Now divide by 2

(6/2)

Ans. 3

║

((7, 15, 12, 9, 7))

Mean: =50/5 Ans. 10

Mode: = (7, 7, 9, 12, 15) Ans. 7

Median: Ans. 12

((10, 8, 4, 5, 8, 5, 7))

Mean: =47/7 Ans. 6.71

Mode: = (4 , 5 , 5 , 7 , 8 , 8 , 10) Ans. 5 and 8

Median: (5+8) =13/2 Ans. 6.5

((4 , 8 , 11, 11, 12, 12, 12, 12,)

Mean: 82/8 Ans. 10.25

Mode: Ans. 12

Median= (11+12)= 23/2 Ans. 11.5

((7, 5, 11, 7, 12, 8, 6, 9, 7))

Mean: 72/9 Ans. 8

Mode: (5, 6, 7, 7, 7, 8, 9, 11, 12) Ans. 7

Median: Ans. 12

4 0
3 years ago
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