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3 years ago

13

Good Taste Food Company asked 100 randomly selected students at Ridgemont High School the question, "Do you prefer pizza or a ve

ggie burger for lunch?" and 67% answered "pizza."

2 answers:

kkurt [141]3 years ago

8 0

Answer: A - About 67%, percent of all students at Ridgemont High prefer pizza for lunch.

Step-by-step explanation:

Alecsey [184]3 years ago

5 0

About 67%, percent of all students at Ridgemont High prefer pizza for lunch.

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A signal light is green for 4 minutes, yellow for 10 seconds, and red for 3 minutes. If you drive up to this light, what is the

posledela

Answer:

0.56 is the required probability.

Step-by-step explanation:

Time for which signal shows green light = 4 minutes

Time for which signal shows yellow light = 10 seconds

Time for which signal shows red light = 3 minutes

To find:

Probability that the signal will show green light when you reach the destination = ?

Solution:

First of all, let us convert each time to same unit before doing any calculations.

Time for which signal shows green light = 4 minutes = 4 $\times$ 60 seconds = 240 seconds

Time for which signal shows yellow light = 10 seconds

Time for which signal shows red light = 3 minutes = 3 $\times$ 60 seconds = 180 seconds

Now, let us have a look at the formula for probability of an event E:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

Here, E is the event that green light is shown by the signal.

Number of favorable cases mean the time for which green light is shown and Total number of cases is the total time <em>(Time for which green light is shown + Time for which Yellow light is shown + Time for which red light is shown)</em>

So, the required probability is:

$P(E) = \dfrac{240}{240+10+180}\\\Rightarrow P(E) = \dfrac{240}{430}\\\Rightarrow \bold{P(E) \approx 0.56 }$

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2 years ago

A shipping box in the shape of a rectangular prism has a volume of 18x^3+5x^2-2x. what are three expressions that can represent

Scrat [10]

Volume of the prism is given by:
Volume=length×width×height
but
V=<span>18x^3+5x^2-2x
V=x(18x^2+5x-2)
V=x(9x-2)(2x+1)
Hence the possible expression for the dimensions of the shipping box is x by (9x-2) by (2x+1)</span>

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3 years ago

Need help please

Marta_Voda [28]

Dear Brainly User,

Your answer is <em>100 g of Au-198 would have a half life of 2.7 </em><em>day.</em>

<em> </em><em> </em><em> </em><em>Hope </em><em>it</em><em> helped</em><em>.</em><em>.</em><em>.</em><em> </em><em>pls </em><em>mark</em><em> brainliest</em>

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3 years ago

You have a new mobile phone. the phone costs £140 and then you pay for a one year contract at £15 a month. how much do you pay i

wel

£140 + <span>£15(month) =
</span>
£140 + <span>£15(12) =
</span>
£140 + <span>£180 =
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£320<span />

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3 years ago

8x-9y+16x+12y<br><br> How do I solve this equation

Mama L [17]

Combine like terms (x's go with x's and y's go with y's) take the sign in from of the value and combine 8x+16x =24x and -9y+12y=3y (combine only works if the variables have the same exponent ( u can combine x and x(because they have an understood exponent of 1) but not x and x^3)

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3 years ago

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