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EleoNora [17]
4 years ago
6

The following data shows the number of contacts that a sample of high school students had in their cell phones. does the data gi

ve convincing statistical evidence that one gender has more contacts that the other? you need both graphical and numerical evidence.
Male: 124,41,29,27,44,87,85,260,290,31,168,169,167,214,135,114,105,103,96,144
Female: 30, 83, 116, 22, 173, 155, 134, 180, 124, 33, 213, 218, 183, 110
Mathematics
1 answer:
Klio2033 [76]4 years ago
5 0
Yes it does cause of course girls are gonna have alot of numbers so tjey can get in contact with ppl
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A chemist mixed 5 mL of Solution A with every 3 mL of Solution B to make a new solution
Nana76 [90]

Answer:

5:3

Step-by-step explanation:

Given that the chemist mixed 5 mL of Solution A with every 3 mL of Solution B to make a new solution with a new concentration.

So, the amount of Solution A in the mixture, a = 5 mL

The amount of Solution B in the mixture, b = 3 mL

Therefore, the ratio of Solution A to Solution B in the new solution with the same concentration is a:b=5:3.

Hence, the required ratio for the same concentration is 5:3.

Please note that none of the given options matched.

3 0
3 years ago
Evaluate the expression 4 × (3 + 52) ÷ 2. Show your work.
STatiana [176]

Answer:

110

Step-by-step explanation:

4 x ( 3+ 52) ÷ 2

4 x 55 ÷ 2

220 ÷ 2 = 110

4 0
3 years ago
Read 2 more answers
HELP PLZ FIRST ANSWER WILL GET BRAINLIEST<br> 5 5/6 times 4 1/4
Nikolay [14]

Hello!

It would be 24.79 but if the answer were to be rounded, it would be 25

Hope this helps! :)

6 0
3 years ago
Read 2 more answers
A phone company offers two monthly plans. Plan A costs $11 plus an additional $0.16 for each minute of calls. Plan B costs $29 p
Andrew [12]

Answer:

The plans will cost the same when the amount you have to pay for talking for "x" minutes on Plan A is the same has what you have to pay for talking for the same number of "x" minutes when using Plan B.

 

$$ Plan A = $$ Plan B

 

To find the charge on each plan we add the base rate to the per minute call rate for each.

 

Plan A = $27 + $0.11x

Plan B = $13 + $0.15x

 

Let's drop the $ sign for now and get rid of the decimal point by multiplying by 100.

 

2700 + 11x = 1300 + 15x

 

Subtracting 11x and 1300 from both sides:

 

4x = 1400

 

x = 350 min.

 

Using this result the plans both cost $65.50 for 350 min of talk time.

Step-by-step explanation:

boom   :)

5 0
3 years ago
Yvette is starting a jewelry business. She spends $120 on supplies and makes 18 necklaces. She wants to earn a profit equal to 3
kiruha [24]

Yvette wants to earn a profit of $360, then. That means she has to make a total of $480. 480 divided by 18 is 26 and 2/3. That basically rounds up to $26.67.


480 = 18x


360 = 18x - 120


120(3) = 18x - 120


(I'm not that good at this, so don't take my word for it)

4 0
3 years ago
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