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Ipatiy [6.2K]
3 years ago
12

Can anyone help please!!!

Mathematics
1 answer:
masha68 [24]3 years ago
4 0

Answer:

There is an answer for this asked by someone else

Step-by-step explanation:

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The length of a rectangle is twice the width. Find the width of the perimeter is 60 centimeters. Define a variable, write an equ
Andre45 [30]

The width of rectangle is 10 cm.

Step-by-step explanation:

Perimeter of rectangle = 60 centimeters

Let,

w be the width of rectangle.

The length of a rectangle is twice the width.

length of rectangle = 2w

We know that;

Perimeter = P = 2(Length+Width)

P = 2(2w+w)

Solving the Equation;

60=2(3w)\\60=6w\\6w=60

Dividing both sides by 6;

\frac{6w}{6}=\frac{60}{6}\\w=10

The width of rectangle is 10 cm.

Keywords: perimeter, rectangle

Learn more about perimeters at:

  • brainly.com/question/7419893
  • brainly.com/question/730852

#LearnwithBrainly

4 0
3 years ago
June drinks 2.5 ounces of water every 20 minutes. How much water does she drink per hour?
kupik [55]

Answer:

7.5 ounces

Step-by-step explanation:

\frac{2.5}{20} =\frac{x}{60} \\\\20x=150\\x= 7.5

6 0
3 years ago
Read 2 more answers
Please answer ASAP!
Mama L [17]

Answer:

3c+12

Step-by-step explanation:

Are of rectangle = Length * Width

Given the following data

Length: (c+4) ft

Width: 3 ft

Area of the rectangle = 3 (c+4)

Expand

Area of the rectangle = 3(c) + 3(4)

Area of the rectangle = 3c  + 12

hence the expression in simplest form for the area of the rectangle is 3c+12

8 0
3 years ago
True or false? n + x = x + n
vampirchik [111]

Answer:

true

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $10,
geniusboy [140]

Answer:

a ) n = 1667

b) n= 5192

c) n=1500

Step-by-step explanation:

c= 95%

Expected value = E.v= 300 , 170 , 100

R = 35000-10000=25000

σ = R / 4 = 25000 / 4 = 6250

For sample size

b = ( zα/2  / 2σ  / E )^2

where 1-α = 0.95 and

zα/2 = 1.96

then putting values one by one of E we get

E.v = 300

  n= 1667

E.v = 170

n=5192

E.v =100

n= 1500

so for

a ) n = 1667

b) n= 5192

c) n=1500

8 0
3 years ago
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