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DanielleElmas [232]
2 years ago
12

A store has 7 red shirts 15 black shirts and 13 white sshirts

Mathematics
1 answer:
SVEN [57.7K]2 years ago
0 0
The total number of shirts is 35 you are most likely to pick a black shirt you are least likely to pick a red shirt
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3x+y=115x-y=21 Directions: Solve each system of equations by elimination. Clearly identify your solution.
olchik [2.2K]

To solve, we will follow the steps below:

3x+y=11 --------------------------(1)



5x-y=21 ------------------------------(2)

since y have the same coefficient, we can eliminate it directly by adding equation (1) and (2)

adding equation (1) and (2) will result;

8x =32

divide both-side of the equation by 8

x = 4

We move on to eliminate x and then solve for y

To eliminate x, we have to make sure the coefficient of the two equations are the same.

We can achieve this by multiplying through equation (1) by 5 and equation (2) by 3

The result will be;

15x + 5y = 55 ----------------------------(3)

15x - 3y =63 --------------------------------(4)

subtract equation (4) from equation(3)

8y = -8

divide both-side of the equation by 8

y = -1

8 0
1 year ago
The altitude of an equilateral triangle is 9 inches. Find the perimeter of the triangle in inches.
Fiesta28 [93]
If we  draw a perpendicular line from one of the vertices of the triangle we get  2 right angled triangles  each with  altitude 9 ins  and vertex angle = 30 degrees.   So:-

cos 30 = 9 /h     where h = one of the sides of the equilateral triangle

h =  9 / cos 30  =  10.392 inches

Therefore the perimeter of the triangle = 3 * 10.392 =  31.1769 ins

Answer is 31.18 inches to the nearest hundredth.
5 0
3 years ago
Can someone help me please
zubka84 [21]
It’s too small zoom in some I will be glad to assist you
7 0
3 years ago
Write an algebraic expression for the pharse: 5 less than the product of 6 and n
kiruha [24]

6n - 5 is the answer

<h2>YOURE WELCOME, PLEASE MARK AS BRAINLIEST AND FOLLOW ME ❤️❤️</h2>
7 0
2 years ago
Read 2 more answers
Did any of you army's go to the BTS concert, because I sadly didn't get to go.
kakasveta [241]

Answer:

No I didn't go

Step-by-step explanation:

5 0
2 years ago
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