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Maru [420]
3 years ago
13

Using the frequency table below what is the probability of selecting a boy and a person who bought 10 up to 20 lunches

Mathematics
1 answer:
Orlov [11]3 years ago
8 0

Answer:

1/3

Step-by-step explanation:

\left[\begin{array}{cccc}Bought\ Lunch&Boys&Girls&Total\\0\ up\ to\ 10&10&5&15\\10\ up\ to\ 20&20&25&45\\Total&30&30&60\end{array}\right]

The number of boys who bought 10 to 20 lunches is 20.

The total number of students is 60.

So the probability is 20/60 = 1/3.

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HELPPP PLEASE!!!!!!!!!!!
Svetlanka [38]

Answer:

C

Step-by-step explanation:

calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (0, 2) and (x₂, y₂ ) = (4, 0) ← 2 points on the line

m = \frac{0-2}{4-0} = \frac{-2}{4} = - \frac{1}{2}

the y- intercept is the value of y where the line crosses the y- axis , then

y- intercept = 2

8 0
2 years ago
What’s the answer to my question
Natali [406]

Answer:

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Step-by-step explanation:

Well the average between  -3 -2 and -1 seems to be -2, so all i do is 95-24 and you get 71, either that or 65. I highly think its 71 though

4 0
3 years ago
what in a equation to represent the relationship "a number decreased by negative 7 and is the same thing as 48
murzikaleks [220]
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6 0
3 years ago
Each day, there is a 75% chance that elise will do her homework. what is the probability she does her homework on monday or tues
serg [7]
This problem is easier solved by finding the probability that she does NOT do her homework both Monday and Tuesday, which is obtained by the multiplication rule.

P(no HW on Monday) = 1-0.75 = 0.25
P(no HW on Tuesday) = 1-0.75 = 0.25
P(no HW on both Monday and Tuesday) = 0.25*0.25=0.0625 
    [by the multiplication rule]

This means that the rest of the time (1-0.0625=0.9375) Elsie does her homework either Monday, or Tuesday, or both days.
=>
P(HW either Monday, Tuesday, or both) = 0.9375

(note: in current English, Monday or Tuesday means "either Monday, Tuesday, or both days")

5 0
3 years ago
Read 2 more answers
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EleoNora [17]

Answer:

$37

Step-by-step explanation:

Travis has $8 left in his pocket. Do the opposite of what he did. If he "spent money", add it to the amount he has left. If he "found" money, then subtract.

First, he spent $26 on groceries for dinner. Add 26 with 8:

8 + 26 = 34

He found $1 on the ground. Subtract 1:

34 - 1 = 33

He spent $4 on lunch. Add 4:

33 + 4 = 37

Travis had $37 at the beginning of the day.

~

5 0
3 years ago
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