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Lemur [1.5K]
3 years ago
5

Nicole needs to spend at least 4 hours each week practicing the guitar. She has already practiced 2 1/3 hours this week. She wan

ts to split the remaining practice time evenly between last two days of the week. Write an inequality to determine the minimum number of hours she needs to practice on each of the two days
Mathematics
2 answers:
melisa1 [442]3 years ago
7 0

Answer:

x>=5/6

Step-by-step explanation:

She's practiced 2 1/3 hours already. Therefore, she has 1 2/3 hours left to practice. Let x be the minimum number of hours she needs to practice on each of the remaining two days.

Splitting up the remaining hours into two days, we get (5/3) divided by 2, which is 5/6 hours per day.

x is greater than or equal to 5/6 hours per day.

enot [183]3 years ago
5 0

Answer:   2  1/3 + 2x > 4

Step-by-step explanation: The answer is   2  1/3 + 2x > 4 because this equation correctly shows how manyh hours she needs to practice.

Hope this helped!

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15. Marteen wants to paint 2/3 of her room today. She wants to paint 1/4
Zanzabum

Answer:

1/6

Step-by-step explanation:

2/3 x 1/4 is 2/12, which simplified is 1/6.

5 0
4 years ago
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Malcolm wanted to build a dog run with an area of 64. What is the smallest perimeter the dog run could be
Brrunno [24]
The shape with the most area with the smallest perimiter is the circle
first find the radius
then find the circumfernece(permiter)
so
area=64
shape=circle
area of circle=pi times r^2
pi times r^2=64
divide both sides by pi (aprox 3.141592)
r^2=20.3718
square root both sdies
r=4.5

circumference=2pi times r
2 times 3.141592 times 4.5=28.36
perimiter is 28.36
3 0
3 years ago
A football is 64 metres wide and 118 metres long. what is its perimeter?
ratelena [41]
I guess you're asking the football court?? cuz a football is sphere shape.
for a rectangular shape just add the width and length together then mmultiply it by 2.
so
(64+118)x2
= 364 m2
7 0
3 years ago
If (-1,4) and (3,-2) are end points of diameter of the circle, then the equation of the circle is
Volgvan

Answer:

If you've more doubts you can ask :)

Step-by-step explanation:

If the centre of a circle is (a, b) and radius r, then the equation of the circle is :

(x - x)^2 + (y-b)^2 = r^2

<em><u>First we will find the centre, (a , b): </u></em>

<em><u /></em>a = \frac{3+(-1)}{2} = \frac{2}{2} = 1\\\\b = \frac{-2 + 4}{2} = \frac{2}{2} = 1<em><u /></em>

<em><u>Find radius:</u></em>

Radius, r = \frac{Diameter}{2}

Diameter is the distance between (-1, 4) and (3, -2)

diameter = \sqrt{(x_2 - x_1)^2 +(y_2-y_1)^2} \\\\

             = \sqrt{(3-(-1)^2 + (-2-4)^2} \\\\=\sqrt{16 + 36}\\\\=\sqrt{52}\\\\=\sqrt{4 \times 13}\\\\=2\sqrt{13}    \ units

Therefore , r = \frac{2 \times \sqrt{13} }{2} = \sqrt{13}  \ units

<em><u>Equation of the circle is :  </u></em>

                                 (x - 1)^2 +(y-1)^2 = 13<em><u></u></em>

4 0
3 years ago
For a health assignment, Janet and Kate record how many students wear glasses in each of their classes. In Janet's class, 15 out
prohojiy [21]

Answer:

There are equal ratios

Step-by-step explanation:

100/25=4 and 15x4 is 60

100/20=5 and 12x5 is also 60

5 0
3 years ago
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