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3 years ago

The temperature at 9am was 4 degrees Celsius. At 7pm the temperature was

Mathematics

1 answer:

madam [21]3 years ago

4 0

Answer:

i'm not sure

Step-by-step explanation:

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A runner completed a 26.2-mile marathon in 210 minutes.

miskamm [114]

26.2. 0.13
------ ÷210. ------
210. 1

The amount miles ran in 1 minute is 0.13 miles.

I don't really know what to do for part b, I don't wanna give a fellow walking dead fan the wrong answer. ;)
BTW I'm a huge fan of the walking dead, that show is my life lml.

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4 years ago

Solve the following equation. 1/3 k + 80 = 1/2 k + 120

Lady bird [3.3K]

Answer:

2; 3; 80; 1; -40; 1; -240 (answered from left to right then the next line)

Step-by-step explanation:

This is a question on fractions and solving algebraic equations. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)

3 0

3 years ago

Read 2 more answers

PLEASE HRY ILL MARK BRAINLIEST

KatRina [158]

The general equation of the line is 3x−2y−4

4 0

3 years ago

Suppose an advertising company wants to determine the current percentage of customers who read print magazines. How many custome

user100 [1]

Answer: 543

Step-by-step explanation:

Given : Level of confidence = 0.98

Significance level : $\alpha=1-0.98=0.02$

By using the normal distribution table,

Critical value : $z_{\alpha/2}=2.33$

Margin of error : $E=5\%=0.05$

The formula to find the population proportion if prior proportion of population is unknown :-

$n=0.25(\dfrac{z_{\alpha/2}}{E})^2$

$\Rightarrow n=0.25(\dfrac{2.33}{0.05})^2=542.89\approx543$

Hence, the company survey minimum sample having size =543

8 0

3 years ago

Read 2 more answers

hot dogs are sold in packages of 10 and hot dog buns are sold in packs of 8 Tommy wants to know the least number of packs of hot

enot [183]

Answer:

4 packs of hotdogs, 5 packs of buns

Step-by-step explanation:

In this case, we need to find the LCM, least common multiple, of 8 and 10 to find the least number of packs of hot dogs and buns that Tommy needs to buy.

The LCM of 8 and 10 is the smallest number that is both divisible by 8 and 10. One way we can find this is by checking all the multiples of 10 in ascending order to see if they are divisble by 8:

10 is not divisible by 8

20 is not divisible by 8

30 is not divisible by 8

40 is divisible by 8!

Therefore, Tommy will need to by 40 buns and 40 hotdogs. Since buns come in packs of 8 and hot dogs come in packs of 10, we can divide to get the number of packs Tommy should buy respectively:

$40$ ÷ $10=4$ packs of hotdogs

$40$ ÷ $8=5$ packs of buns

Tommy will need to buy 4 packs of hotdogs and 5 packs of buns so that he does not have anything left over.

I hope this helps! Let me know if you have any questions :)

4 0

3 years ago