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laiz
13 days ago
7

The table shows information about the numbers of hours 30 children spent on their tablets one evening. a) find the class interva

l that contains the median. B)work out an estimate for the mean number of hours

Mathematics
2 answers:
tester [8.8K]13 days ago
8 0
a) The class interval that contains the median is 20<h b="" the="" median="" estimate="" is="" hrs.="" for="" part="" a="" we="" determine="" class="" interval="" indicating="" median.="" total="" frequency="" is:="" here="" find="" corresponds="" to="" middle="" point="" which="" value.="" summing="" from="" top="" yields="" cumulative="" frequencies="" elevated="" or="" beyond="" indeed="" similarly="" adding="" bottom="" corroborates="" this.="" representing="" grouped="" data="" requires="" using="" midpoint="" class.="" />
PIT_PIT [9.1K]13 days ago
6 0
In part b), the outcome is 2.2.
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Tracy sells water at a fair in 17oz bottles or 11oz cans. If on one shelf she has 11 containers of water that hold a total of 15
lawyer [9226]

Response:

Count of bottles = 6

Count of cans = c

Detailed reasoning:

Based on the following information:

Containers for selling water:

17 oz bottle

11 oz can

Let the number of bottles be denoted as b

Count of cans represented as c

b + c = 11 - - - (1)

17b + 11c = 157 - - - (2)

b = 11 - c

Insert into (2)

17(11 - c) + 11c = 157

187 - 17c + 11c = 157

187 - 6c = 157

-6c = 157 - 187

-6c = -30

c = 30/6

c = 5

From; b = 11 - c

b = 11 - 5

b = 6

Thus,

Count of bottles = 6

Count of cans = c

3 0
13 days ago
Ben has 400 counters in a bag. He gives 35 of the counters to Sonia 130 of the counters to Phil 75 of the counters to Lance What
lawyer [9226]

Answer:

2/5

Step-by-step explanation:

By subtracting 130, 35, and 74 from the total of 400, you arrive at 160 left. Next, simplify this fraction by finding the greatest common divisor to get 2/5!

8 0
1 month ago
Read 2 more answers
How do you write algebraic expressions to model quantities
Zina [9157]
To create algebraic expressions that represent quantities, translate the verbal description into mathematical terms following the sentence’s structure. For example, “one minus a number equals zero” becomes
1. 1 – n = 0.
Another example: John bought 25 apples and Julia bought 15. If Niccole bought twice as many as Julia, how many apples did Niccole buy?<span><span>
Steps:</span>First, restate the situation clearly so you can identify the relationship and how to form the expression.</span> <span><span>
Solution:</span>Julia = 15 apples Niccole = 2Julia </span>Thus, 2Julia = 2(15) = 30 apples.




3 0
1 day ago
Read 2 more answers
Rob borrows $15.00 from his father, and then he borrows $3.00 more. Drag numbers to write an equation using negative integers to
PIT_PIT [9101]

Answer:

Rob's total debt to his father is calculated as: -$15 - $3 = -$18

Step-by-step explanation:

Initially, Rob borrows $15.

Then, he borrows an additional $3.

Expressing this with negative integers gives us

-15 - 3 = -18

4 0
28 days ago
Read 2 more answers
Write three numerical expressions that are equivalent to (0.0004) . (0.005)
lawyer [9226]
The three equivalent numerical expressions are:

(0.0004). (0.005) = (\frac{4}{10000}).(\frac{5}{1000})

(0.0004). (0.005)= (\frac{1}{2500}).(\frac{1}{200})

(0.0004). (0.005) = (4 \times 10^{-4}).(5 \times 10^{-3})

Solutions to create three numerical expressions equivalent to (0.0004). (0.005)

8 0
3 days ago
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