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ollegr [7]
3 years ago
15

Helpp!! its due today plzz helppp :)

Mathematics
2 answers:
Ivan3 years ago
7 0

Answer:

3 1/2

Step-by-step explanation:

7     4                       28

- *  -     ======         ---  ===== 3.5

8     1                        8

djverab [1.8K]3 years ago
3 0

Answer:

3 1/2

Step-by-step explanation:

7/8 ÷ 1/4 you must multiply by the reciprocal

7/8 * 4/1 = 28/8 simplify

3 1/2

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Eric has 12 trophies in his room 9 of them are for football what percentage of the total number of sports trophies are his footb
olya-2409 [2.1K]

Answer:

75%

Step-by-step explanation:

9 ÷ 12 = 0.75 = 75%

7 0
3 years ago
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sergiy2304 [10]

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Answer:

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Step-by-step explanation:

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8 0
2 years ago
Consider the system of linear equations and the matrix equations below.
gregori [183]

9514 1404 393

Answer:

  x = 7

Step-by-step explanation:

Using Cramer's rule, the value of x is ...

  x=\dfrac{\left|\begin{array}{cc}2&3\\22&-2\end{array}\right|}{\left|\begin{array}{cc}-1&3\\4&-2\end{array}\right|}

  x = ((2)(-2) -(22)(3))/((-1)(-2) -(4)(3)) = (-4-66)/(2-12) = -70/-10

  x = 7

4 0
2 years ago
The base of a triangle is one third of its height. If the area of the triangle is 24 square inches, what are the base and height
Burka [1]

Answer:

D. 4in, 12in

Step-by-step explanation:

Area of triangle  = 24in²

Unknown:

Base and height of the triangle = ?

Solution:

The area of a triangle  = \frac{1}{2} x base x height

   From the problem,

        base  = \frac{1}{3} x height

let the base  = b

            height  = h

         b =  \frac{1}{3}h

          h = 3b

Input into the formula of area;

       24  =  \frac{1}{2} x b x 3b

   Mulitply through by 2;

       48 = 3b²

         b² = 16

         b = √16 = 4

So, h = 3b= 3 x 4 = 12in

6 0
3 years ago
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