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vlada-n [284]
3 years ago
13

Please help, someone!​

Mathematics
1 answer:
NISA [10]3 years ago
6 0

hey. I wish I could help but even me I'm not good at it. my cousin usually helps me do it but he's not around I'm sorry say.

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3. In class today, 1/4 of the students wore shorts and
Mkey [24]

Answer:

A. \frac{1}{4} = \frac{3}{12}

Step-by-step explanation:

\frac{1}{4} of the students wore shorts.

\frac{3}{12} of the students wore jeans.

Converting the fractions of the students who wore shorts and jeans respectively;

\frac{1}{4} = 0.25

\frac{3}{12} = 0.25

This means that the ratio of students who wore shorts is the same as that of students who wore jeans.

i.e \frac{1}{4} = \frac{3}{12}

4 0
3 years ago
Read 2 more answers
Michael cleans 90 cars in 5 days. How many cars does Michael clean per day?
Neko [114]

Answer:

18

Step-by-step explanation:

Since he does 90 cars-----5 days

x cars--------1 day

we multiply 90 by 1 then over 5

5 0
1 year ago
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Write 26 weeks in years​
WARRIOR [948]

Answer:

.5 years

Step-by-step explanation:

52 weeks = 1 year

26 weeks * 1 year/52 weeks = .5 years

7 0
3 years ago
Read 2 more answers
Which of the following sets of numbers could not represent the three sides of a triangle?
timama [110]

Answer:

  (c)  {13,16,30}

Step-by-step explanation:

In order for the sides lengths to form a triangle, the sum of the shortest two must exceed the longest.

That will not be the case for ...

  {13, 16, 30}

because 13 +16 = 29 < 30.

  (13, 16, 30} could not form a triangle

__

For more on the subject, see ...

  brainly.com/question/26258903

8 0
2 years ago
(2x + y)2 – (3x – 2y)2 + (x – 4y)(x + 4y<br>11​
Vinvika [58]

Answer:

Step-by-step explanation:

(a+ b)² = a² +  b² + 2ab

(2x + y)² = (2x)² + y² + 2*2x *y

             = 4x²  + y² + 4xy

(a- b)² = a² + b² - 2ab

(3x - 2y)² = (3x)² + (2y)² - 2*3x *2y

              = 9x² + 4y² - 12xy

(a - b)(a +b) = a² - b²

(x - 4y(x + 4y) = x² - (4y)²

                     = x² - 16y²

(2x + y)² - (3x - 2y)² + (x - 4y)(x +4y)

  = 4x²  + y² + 4xy - (9x² + 4y² - 12xy) + x² - 16y²

  = 4x²  + y² + 4xy - 9x² - 4y² + 12xy + x² - 16y²

  = 4x² - 9x² + x²  + y² - 4y² - 16y²+ 4xy + 12xy

 =    -4x² - 19y² + 16xy

8 0
2 years ago
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