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slavikrds [6]
3 years ago
14

I have tried different attempts but still can’t solve it

Mathematics
1 answer:
zloy xaker [14]3 years ago
5 0
Hello!

First you to do 65 * 0.20

0.20 is 20% as a decimal

65 * 0.20 = 13

$13 is how much John saves.

To find out how much the skateboard cost you subtract how much he saved by the cost of the skateboard

65 - 13 = 52

The skateboard cost $52

Hope this helps!
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At a local college, of the male students are smokers and are non-smokers. Of the female students, are smokers and are non-smoker
natima [27]

Answer: Our required probability is 0.88.

Step-by-step explanation:

Since we have given that

Number of male students are smokers = 10

Number of male students are non smokers = 490

total number of male students = 500

Number of female students are smokers = 40

Number of female students are non smokers = 363

Total number of female students = 403

Probability that both are non smokers is given by

P(Non-smoker\ male)\times P(Non-smoker\ female)\\\\=\dfrac{490}{500}\times \dfrac{363}{403}\\\\=0.98\times 0.9\\\\=0.88

Hence, our required probability is 0.88.

3 0
3 years ago
Pls pls plspls answer
Tpy6a [65]

Answer:

Domain: 337, 674, 1011, 1348

Range: 1,2,3,4

7 0
3 years ago
Minnie is making tea. She knows that her tea tastes best if she lets her tea bag sit in the hot water for exactly fifteen minute
artcher [175]

Answer:

|x - 2| = 15 ; |x + 2| = 15

Step-by-step explanation:

Given that:

Wait time = 15 minutes

Variation in wait time depending on level of hotness = 2 minutes

X ± 2 = 15

x + 2 = 15 or x - 2 = 15

x = 15 - 2 = 13 or x = 15 + 2 = 17

Hence, to express the above as an absolute value equation :

|x - variation| = mean time

|x - 2| = 15 ; |x + 2| = 15

3 0
3 years ago
In a poll of Mr. Briggs's math class, 67% of the students say that math is their favorite academic subject. The editor of the sc
Lubov Fominskaja [6]

Answer:

1) biased sample

2) random sampling

Step-by-step explanation:

Since the results are based on feedback of students in only one class, it's not a good representative of the entire student body.

Also, since it's a math class there will be a bias.

Better method would be randomly selecting students from the entire school students list and take their feedback

7 0
3 years ago
The pair of figures is similar. Find x. Round to the nearest tenth if necessary. 2.2 ft 2.7 ft 0.3 ft 4.1 ft
I am Lyosha [343]
Probably 2.2 ft idk I’m bad at math
5 0
3 years ago
Read 2 more answers
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