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Serhud [2]
3 years ago
11

a store bought a diamond ring at a cost of 8000 and marked it up 25%.Tommy bought it and paid 15% sales tax.what was his total c

ost?
Mathematics
1 answer:
kirza4 [7]3 years ago
5 0
You do 8000×.25 to get 2000
then add 8000 to 2000 to get 10000
then multiply 10000 by .15 to get 1500
then add 10000 to 1500 to get your answer which is 11500
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If x,y and z are positive integers and 3x=4y=7z,
Pani-rosa [81]
<span>3x=4y=7z
so
GCF:
3 * 4 * 7 = 84

3x = 84 
  x = 28

4y = 84
  y = 21

7z = 84
  z = 12

</span><span>least possible value for
</span><span>x + y + z = 28 + 21 + 12 = 61
</span>
answer
(d) 61
5 0
2 years ago
What is the y-coordinate of the solution of the system of equations? {y=3x−262x−y=19
givi [52]

Answer:

<h2>           y = -5</h2>

Step-by-step explanation:

y = 3x − 26

2x − y = 19

2x - (3x - 26) = 19

2x - 3x + 26 = 19

   - x = - 7

     x = 7

y = 3•7 -26 = 21 - 26 = - 5

6 0
3 years ago
Two rectangular prisms have a combined volume of 432 cubic feet. Prism A has half the volume of Prism B.
dexar [7]

Answer:

a. 144 cubic foot

b. 12 ft

c. 18 ft

Step-by-step explanation:

Let the volume of prism A be V_a

and that of prism b be V_b

ATQ,   V_a  +  V_b= 432

also V_a= 0.5 V_b

⇒1.5 V_b= 432

= V_b= 432/1.5= 288 cubic feet

therefore V_a= 144  cubic feet

volume of prism= area of base×height = V_a

24×h = 144

⇒h= 12 ft

A_b= 2/3×24

⇒base area of prism B= 16 sq.ft

now 16×h_b= 288⇒h_b= 288/16= 18 ft

3 0
3 years ago
Read 2 more answers
What are the coordinates of the centroid of a triangle with vertices D(0,1),E(2,6), and F(7,2) enter your answer in the boxes
Daniel [21]

The coordinates of centroid of given triangle are: (3,3)

Step-by-step explanation:

Given

D(0,1) = (x1,y1)

E(2,6) = (x2,y2)

F(7,2) = (x3,y3)

The centroid of a triangle when the vertices are known is given by:

C = (\frac{x_1+x_2+x_3}{3} , \frac{y_1+y_2+y_3}{3})

Putting the values

C = (\frac{0+2+7}{3} , \frac{1+6+2}{3})\\C = (\frac{9}{3} , \frac{9}{3})\\= (3,3)

Hence,

The coordinates of centroid of given triangle are: (3,3)

Keywords: Triangle, centroid

Learn more about triangles at:

  • brainly.com/question/10717746
  • brainly.com/question/10736268

#LearnwithBrainly

7 0
3 years ago
Write a function to represent each situation:
bekas [8.4K]

Answer:

Step-by-step explanation:

c = 50 + 0.25m

3 0
3 years ago
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