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RSB [31]
3 years ago
15

I NEED HELP QUICKLY... The Student Council is selling raffle tickets to raise money for the Winter Dance. They have a total of 2

75 tickets to sell and are told they must sell at least 82% of them to raise enough money. How many do they need to sell? [A] Set up a proportion that can be used to solve this problem. [B] Show all steps to solve the problem.
Mathematics
2 answers:
Vladimir [108]3 years ago
7 0

A)

82/275

B)

100%/x%=275/82

(100/x)*x=(275/82)*x

multiply both sides of the equation by x

100=3.4*x

divide both sides of the equation by (3.4) to get x

100/3.4=x

29.8=x

x=29.8

Gwar [14]3 years ago
3 0

Answer:

a

Step-by-step explanation:

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Task 1:
laiz [17]

Answer:

The toy's maximum height is 10.12\ \text{feet}.

Step-by-step explanation:

The equation that models the toy's height in feet from the ground at t seconds after  he threw it is given by :

h = -2t^2 + 7t + 4 .....(1)

It is required to find the toy's maximum height. For maxima or minima, put

\dfrac{dh}{dt}=0

Plugging the value of t in above equation,

\dfrac{d(-2t^2 + 7t + 4)}{dt}=0\\\\-4t+7=0\\\\t=\dfrac{7}{4}\\\\t=1.75\ s

Now put t = 1.75 s in equation (1) such that,

h = -2(1.75)^2 + 7(1.75) + 4\\\\h=10.12\ \text{feet}

So, the toy's maximum height is 10.12\ \text{feet}.

4 0
3 years ago
Find all missing angles <br> y+30+2y=180
kirill [66]

Answer:

Step-by-step explanation:

y+30+2y=180

Add like terms

3y+30=180

Subtract 30 on both sides

3y=150

Divide by 3 on both sides

y=50

Now all you have to do i calculate the angles.

7 0
2 years ago
Determine the area of the composite figure.​
rodikova [14]

Answer:

113 m^{2}

Step-by-step explanation:

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5 0
2 years ago
A car's speedometer has a percent error of 5%. The speedometer currently shows that the car is traveling at a speed of 60 mph.
Minchanka [31]

Answer:

The actual speed of the car is either 57 mph or 63 mph

Step-by-step explanation:

Given as :

The measured speed o the car = 60 mph

The percentage error in speedometer = 5 %

Let The actual speed of car = x mph

Now, percentage error = \dfrac{\textrm actual value - \textrm measured value}{\textrm measured value} × 100

So, \frac{5}{100} = \frac{x - 60}{60}

or,  \frac{5}{100} × 60 = x - 60

Or, 3 = x - 60

∴  x = 63 mph

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8 0
3 years ago
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Elenna [48]

Answer:

The probability that you would choose lemon-lime and then orange is 3/11 =.273.  

Step-by-step explanation:

These are 'dependent events', which mean that your the event is affected by previous events.  So, because you have eleven total bottles (five lemon-lime and six orange) and you do not replace the first bottle, that would only leave you with ten bottles remaining.  The probability that you will pick the lemon-lime on the first choice is 5/11 because all of the bottles are there.  However, your second choice will only include ten total bottles since you already took one.  The probability that you would choose orange would be 6/10.  When you multiply these two fractions and reduce to simplest form, you get 3/11.  


5 0
2 years ago
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