Wendy asked 40 students on the school football team if they ever injured themselves while playing sports. Fifteen football team members responded “Yes.” Wendy concluded that 375 of the 1,000 students in her school have injured themselves playing sports. Select whether Wendy's conclusion is valid or invalid.

Answer:

5.38

Step-by-step explanation:

Answer:

Step-by-step explanation:

24x + 6y = 144.

18x + 3y = 90.

Divide the (24x + 6y = 144) by 3.

8x + 3y = 48.

18x + 3y = 90.

Cancel the 3y.

8-18x = -10x.

48-90 = -42.

-10x = -42.

x = 4.2

8(4.2) + 3y = 48.

33.6 + 3y = 48.

Cancel out the whole number.

3y = 14.4

y = 4.2

The cost of a flower is $3 and a bush is $12.

One or many equations having the same number of unknowns that can be solved simultaneously are called simultaneous equations. And the simultaneous equation is the system of equations.

Given:

Tiana placed two orders for flowers and bushes.

The first order was for 24 flowers and 6 bushes.

The total cost of the first order was $144.

The second order was for 18 flowers and 3 bushes.

The total cost of the second order was $90.

Let x be the number of flowers and y be the number of bushes.

So, we have a system of equations,

24x + 6y = 144

18x + 3y = 90

Simplifying,

4x + y = 24

6x + y = 30

Subtracting the equations,

we get,

2x = 6

x = 3, and y = 12

Therefore, the solution is x = 3, and y = 12.

To learn more about the system of equations;

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Answer:

20 percent

Step-by-step explanation:

4/20 or 1/5 or 20 percent

Answer:

○ [tex]\displaystyle \textcolor{black}{D.}\:x = -100[/tex]

Explanation:

All you need to do is perfourm the the inverce of division [multiplication] to arrive at the result:

[tex]\displaystyle -100 = 5[-20][/tex]

I am joyous to assist you at any time.

Answer:NOT C

Step-by-step explanation:

Answer:

We can show that ∆ABC is congruent to ∆A′B′C′ by a translation of (x-2, y) unit(s) and a across the x-axis.

Step-by-step explanation:

The triangle ABC is shown in the image attached. The coordinates of the triangle are A(8, 8), B(10, 4), C(2, 6), while the triangle A'B'C' is at A'(6, -8), B'(8, -4), C'(0, -6).

A transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, translation, dilation and rotation.

If a point O(x, y) is translated a units on the x axis and b units on the y axis, the new coordinate is O'(x+a, y+b).

If a point O(x, y) is reflected across the x axis, the new coordinate is O'(x, -y)

Hence if triangle ABC is translated -2 units on the x axis (2 units left), the new coordinates are A*(6, 8), B*(8, 4), C*(0, 6). If a reflection across the x axis is then done, the new coordinates are A'(6, -8), B'(8, -4), C'(0, -6).

Answer:

We can show that ∆ABC is congruent to ∆A′B′C′ by a translation of 2unit(s) left and reflected across the x-axis.

Step-by-step explanation:

Answer:

9 cm^2

Step-by-step explanation:

The area of a triangle is calculated with the following formula:

1/2*b*h (b: base, h: height)

The base is given as 3 and height is 6 so

1/2*3*6 = 9 cm^2 is the answer we are looking for.

Answer: x=3

Step-by-step explanation:

Answer:

The third one x+49+28=180

Step-by-step explanation:

We can say that the angle between the 29° angle and the 49° angle is equal to x, since they are vertically opposite angles.

The sum of 28+49+x is equal to a supplement angle which is a straight line essentially

We can then say x+28+49=180

:)

If you want to calculate x,

x=180-28-49

x=103

Answer: 45%

Step-by-step explanation:

27/60 squares are covered

I reduced the fraction to 9/20, multiplied by 5 to make the denominator 100 and the numerator is 45, therefore fraction is 45/100.

Step-by-step explanation:

Step 1: 5x - 3 + 3 = 12 + 3

Step two: 5x = 15

Step three: 5x/5 = 15/5

Step four: x = 3

Answer:

step one- 5x-3+3=12+3

step two- 5x=15

step three- 5x/5=15/5

step four- x=3

Answer:

6 containers

Step-by-step explanation:

        This problem is asking us to divide the total 2/3 gallons by the 1/8 gallon of paint being poured into each container.

Given:

[tex]\frac{2}{3} /\frac{1}{8}[/tex]

"Keep, change, and flip:"

[tex]\frac{2}{3}*\frac{8}{1}[/tex]

Multiply across:

[tex]\frac{2*8}{3*1} =\frac{16}{3}[/tex]

Simplify:

5 [tex]\frac{1}{3}[/tex]

        Since the problem is counting the one partially filled, we round 5 [tex]\frac{1}{3}[/tex] up to be 6 containers with paint in them.

Answer:

4/11 or 0.36

Step-by-step explanation:

Answer:

b. y=2x-2

Step-by-step explanation:

y=mx+b

m= slope

b=y intercept

Answer:

A

Step-by-step explanation:

law of sine

c/sin(C) = b/sin(B) = a/sin(A)

with the sides and corresponding angles being always opposite.

sin(90) = 1

sin(30) = 0.5

c, the Hypotenuse, is the longest side in such a right-angled triangle.

c/1 = b/0.5

b = c×0.5 = c/2

so, one side has to be half the length of the longest side (Hypotenuse).

the only answer meeting that criteria is A.

the longest side is 10×sqrt(3) = 17.32...

the side half of that is 5×sqrt(3).

and Pythagoras for such a triangle is then

c² = (c/2)² + a²

c² = c²/4 + a²

so, a² = 3c²/4

c² = c²/4 + 3c²/4

therefore we can check also the third side

15² = 3×(5×sqrt(3))² = 3×25×3 = 3×75 = 225 = 15²

correct.

A is such a triangle.

Answer:

320,145

Step-by-step explanation:

Anything under 5 goes down and anything above 5 goes up.

Answer:

300,000

Step-by-step explanation:

Given the following question:

[tex]324145[/tex]

To round to the nearest hundred thousand of this number we must first find the hundred thousand place value and then determine if the number next to that place value is greater than five, if so, we can round the number up.

[tex]324145[/tex]
[tex]PV=3[/tex]
[tex]2 < 5[/tex]
[tex]=30000[/tex]

Rounded to the nearest hundred thousand "300,000" is your answer.

Hope this helps.

Answer:

6x-21+5 = -19           Distribute

6x-16 = -19               Combine like terms

6x = -3                       Add

x = -1/2                    Division

Answer: x=-1/2 in decimal form -0.500

Step-by-step explanation:  Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    3*(2*x-7)+5-(-19)=0

3 • (2x - 7) +  5) -  -19  = 0

Pull out like factors :

  6x + 3  =   3 • (2x + 1)

Solve  :    2x+1 = 0  

Subtract  1  from both sides of the equation :  

                     2x = -1

Divide both sides of the equation by 2:

                    x = -1/2 = -0.500

Answer:

[tex]Day\ 3 = 16237[/tex]

[tex]Day\ 1 = 16390[/tex]

[tex]Day\ 2 = 16550[/tex]

Step-by-step explanation:

Given

[tex]Day\ 1 = 16390[/tex]

[tex]Day\ 2 = 16550[/tex]

[tex]Day\ 3 = 16237[/tex]

Required

Order from least to greatest

Comparing 16390, 16550 and 16237.

The order of arrangement from least to greatest is:

16327, 16390 and 16550.

So, we have:

[tex]Day\ 3 = 16237[/tex]

[tex]Day\ 1 = 16390[/tex]

[tex]Day\ 2 = 16550[/tex]

Answer:

A. 60-degrees N of E because it is closer to the east than the north.

Step-by-step explanation:

Answer:

The correct answer should be 4

Answer:

5mph

Step-by-step explanation:

5mph

Answer:

A,b,c,n

Step-by-step explanation: