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3 years ago

For each graph shown tell whether it shows a proportional relationship

Mathematics

1 answer:

Soloha48 [4]3 years ago

6 0

Answer:

a. yes, because there is a straight line that passes through the origin (0, 0). b. no, there is a straight line but it does not pass through the origin.

Step-by-step explanation:

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50. At a booth at the school carnival in past years, they've found that 32% of students win a stuffed toy ($3.25), 10% of studen

kipiarov [429]

Answer:

The expected amount to be paid by the carnival committee for prices would be $366.80

Step-by-step explanation:

Hello!

Here, we want to calculate the amount of money the carnival committee is expected to pay for the prizes for that booth

From the question, we have 3 categories of prices to be won

To calculate for people that won’t win anything , we simply subtract the percentages of all from 100

That would be 100-32-10-8 = 100-50 = 50%

So now let’s calculate the number of people out of 200 that will win each category based on the percentages

For stuffed toy

32/100 * 200 = 64

Jump rope

10/100 * 200 = 20

For t-shirt

8/100 * 200 = 16

So total price paid for stuffed toy= 3.25 * 64 = $208

For jump rope, we have 1.7 * 20 = $34

For t-shirt , we hav 16 * 7.8 = $124.8

So the total value spent on prices by the committee would be;

124.8 + 34 + 208 = $366.80

5 0

3 years ago

Brainliest to the right answer!

Nostrana [21]

Answer:

y=5/2x-5

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

For each order pair ,determine whether is it a solution to 7x+4y=-23

trasher [3.6K]

Simplifying

7x + -4y = 23

Solving

7x + -4y = 23

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '4y' to each side of the equation.

7x + -4y + 4y = 23 + 4y

Combine like terms: -4y + 4y = 0

7x + 0 = 23 + 4y

7x = 23 + 4y

Divide each side by '7'.

x = 3.285714286 + 0.5714285714y

Simplifying

x = 3.285714286 + 0.5714285714y

5 0

3 years ago

Solve for h 8h =112 can you help me

cestrela7 [59]

What you need to do is do the inverse operation on both sides. So right now, 8 is being multiplied by h, so the inverse operation is division. You divide by 8 on both sides to get what h equals. So your equation looks like:
8h/8=112/8
8h/8 cancels out, so you are left only with h. 112 divided by 8 is 14, so your left with h=14 and that is your answer.

4 0

3 years ago

Read 2 more answers

Use the unit circle to find tan 30°

Alexandra [31]

Answer:

Step-by-step explanation:

Draw the unit circle. Now draw the vertical line (the tangent line) that passes through the point (1,0). In anticlockwise direction from the point (1,0) draw the line that makes 30° angle with positive direction of x axis. Consider right triangle formed by the circle and these two lines. In this triangle the horizontal leg has length 1 (because this leg is the radius of the unit circle). The vertical leg has the length x. The leg opposite to the 30° angle is half of the hypotenuse, so the hypotenuse is 2x. By the Pythagorean theorem,

$(2x)^2=1^2+x^2,\\ \\4x^2=1+x^2,\\ \\3x^2=1,\\ \\x^2=\dfrac{1}{3},\\ \\x=\sqrt{\dfrac{1}{3}}=\dfrac{\sqrt{3}}{3}.$

By the definition of tangent,

$\tan 30^{\circ}=\dfrac{\text{opposite leg}}{\text{adjacent leg}}=\dfrac{\frac{\sqrt{3}}{3}}{1}=\dfrac{\sqrt{3}}{3}.$

3 0

4 years ago