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Naddika [18.5K]
3 years ago
9

Please answer for brainly <3 (correctly)

Mathematics
2 answers:
Westkost [7]3 years ago
8 0
7. d, Julie and randy both walk 5 miles
kari74 [83]3 years ago
4 0
For the first problem, you can multiply each of their distance from school by the how far they are to get how much they walked. Randy would look like this:
6 \times  \frac{2}{3}  \\  \frac{6 \times 2}{3}  \\  \frac{12}{3}  \\ 4
So he walks 4 miles. Sasha would look like:
7 \times  \frac{4}{7}  \\ 28 \div 7 \\ 4
This means Sasha walks 4 miles as well.
Julie's would look like this:
8 \times  \frac{1}{2}  \\  \frac{8}{2}  \\ 4
Julie also walks 4 miles.
From this, we can see that C is the only correct statement.

As for the second, the number 3.444444... would be considered a real and rational number because you can make it a fraction sort of like 1/3 and 0.33333..., so it would be a rational number. A real number is any number that doesn't have a imaginary variable next to it, so it would also be real.
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8. Mitchell bought 600 shares of Centerco two years ago $34.50 per share. He sold them yesterday for $38.64 per share.
g100num [7]

Answer:

a. percentage increase in price per share = 12%

b. The total purchase price for the 600 shares is $20,700

c.  The profit for the 600 shares is $2,484

d.  The profit for the 600 shares is $2,484

Step-by-step explanation:

a. Initial price per share    =  $34.50

Current price per share = $38.64

Change or increase in price =  $38.64 - $34.50 = $4.14

percentage increase in price per share = 12/34.50 x 100% = 12%

b. Total number of shares     =  600

    Price                                   =   $34.50

   The total purchase price for the 600 shares = ($34.5x600) = $20,700

c.  Total cost of 600 shares   =  ($34.5x600) = $20,700

     Total revenue from sales =  ($38.64x600) = $23,184

     Profit from the 600 shares = Total selling price - total cost price

                                                  = $23,184 - $20,700 = $2,484

d.  Total cost of 600 shares   =  ($34.5x600) = $20,700

     Total revenue from sales =  ($38.64x600) = $23,184

     Profit from the 600 shares = Total selling price - total cost price

                                                  = $23,184 - $20,700 = $2,484

7 0
3 years ago
Select the correct answer. Write (21 − 4i) − (16 + 7i) + 28i as a complex number in standard form. A. 5 + 39i B. 5 + 17i C. 5 −
Anastasy [175]

Answer:

<em>b. 5 + 17i</em>

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP!!!!! What is the value of x in the matrix equation below?
Brums [2.3K]

The given matrix equation is,

1.5\left[\begin{array}{cc}x&6\\8&4\end{array}\right] +y\left[\begin{array}{cc}1&4\\3&2\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right].

Multiplying the matrices with the scalars, the given equation becomes,

\left[\begin{array}{cc}1.5x&9\\12&6\end{array}\right] +\left[\begin{array}{cc}y&4y\\3y&2y\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right]  \\

Adding the matrices,

\left[\begin{array}{cc}1.5x+y&9+4y\\12+3y&6+2y\end{array}\right]  =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right]  \\

Matrix equality gives,

1.5x+y=z\\ 9+4y=z\\ 12+3y=6z\\ 6+2y=2

Solving the equations together,

y=-2\\ 3y-1.5x=9\\ -1.5x=9+6\\ x=-10

We can see that the equations are not consistent.

There is no solution.

3 0
3 years ago
A rectangular box is 32 cm wide and 36 cm high. If the surface area of the box is 4344 square​ centimeters, find the length of t
AnnZ [28]

To find the surface area, multiply length x width x height.

let "length" = l

l x 32 x 36 = 4344

Simplify

l x (32 x 36) = 4344

l x 1152 = 4344

Isolate the length. Divide 1152 from both sides

(l x 1152)/1152 = (4344)/1152

l = 4344/1152

l = 3.77 (rounded)

3.77 cm is your length.

hope this helps

8 0
3 years ago
Oh my heavens me. Does anyone have the correct answer for this
madreJ [45]

Answer:

i think C. if i am right tell me

Step-by-step explanation:

3 0
3 years ago
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