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Bezzdna [24]
3 years ago
15

Jericho is doing a quick survey for his high school newspaper. He hands out a simple index card to 100 seniors in his high schoo

l and asks them to simply drop it in a box left near the gymnasium. The card has no place for a name or identifying information. It simply says "In the past year, have you been drunk even one time?" The student simply has to check "yes" or "no." If Jericho’s classmates are like most U.S. seniors, about ____ of them will check "yes." Quizlet
Mathematics
1 answer:
Kazeer [188]3 years ago
8 0

Answer:

50

Step-by-step explanation:

From research among high school students in the US, it was discovered in 2017 by US Centre for Disease Control and Prevention Agency(USCDC), that around 57.8% of high school students have drank alcohol in the previous 1 year.

Now, applying it to this question, since the survey is done among 100 seniors, the most modest probability would likely be 50% which represents 50 people out of the 100 surveyed that will likely check yes

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Enid's and petter's cars weigh a total of 2.1 tonnes. Edins car weighs 280 kg more than Peter's car
kupik [55]

Answer:

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Step-by-step explanation:

dfgsdfgjfsdpogjpdisfiodfsgjdfgoipgdsfjiojgidfjiogdfjgdosfjoigpdjoigfddhfguopaszghsdfpgbnhdfijpghsdjfkghdfsghupdssghujidghsdfjgkldfkdhfguopaszghsdfpgbnhdfijpghsdjfkghdfsghupdssghujidghsdfjgkldfkdhfguopaszghsdfpgbnhdfijpghsdjfkghdfsghupdssghujidghsdfjgkldfkdhfguopaszghsdfpgbnhdfijpghsdjfkghdfsghupdssghujidghsdfjgkldfkdfgsdfgjfsdpogjpdisfiodfsgjdfgoipgdsfjiojgidfjiogdfjgdosfjoigpdjoigfddhfguopaszghsdfpgbnhdfijpghsdjfkghdfsghupdssghujidghsdfjgkldfkdhfguopaszghsdfpgbnhdfijpghsdjfkghdfsghupdssghujidghsdfjgkldfkdhfguopaszghsdfpgbnhdfijpghsdjfkghdfsghupdssghujidghsdfjgkldfkdhfguopaszghsdfpgbnhdfijpghsdjfkghdfsghupdssghujidghsdfjgkldfk

8 0
3 years ago
A palm tree casts a shadow that is 28 feet long. A 6-foot sign casts a shadow 8 feet long.
s2008m [1.1K]

Answer: The height of the palm tree is 21 feet.

Step-by-step explanation:

We can use a ratio to solve this:

Actual height to shadow for both objects. The fraction equivalents must be equal.

6/8 = x/28 . Cross multiply

6(28) = 8x

168 = 8x   Divide both sides by 8  (8's "cancel" on the right)

168/8 =8x/8

21 = x . This gives us the tree's height as 21 feet.

<em>Another way to solve this is to use the ratios, but simplify the first fraction</em>

<em>6/8 = 3/4</em>

<em>Then multiply the length of the shadow by 3/4</em>

<em>3/4 × 28 = height</em>

<em>28÷4 = 7    7 × 3 = 21</em>

<em>21  feet= the height of the palm tree.</em>

3 0
3 years ago
F(x) =- (3x +9) – 13 find f(-5)
belka [17]

f(x) = -(3x + 9) - 13\\f(-5) = -(3 \cdot (-5) + 9) - 13\\= -(-15 + 9) - 13\\= -(-6) - 13\\= 6 - 13\\= - 7

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makvit [3.9K]

Answer:

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Step-by-step explanation:

3 0
3 years ago
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Irina-Kira [14]
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Simplify

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x=15/24-10/24

x=5/24
7 0
3 years ago
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