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vfiekz [6]
2 years ago
7

Pease help me i really need this

Mathematics
2 answers:
ollegr [7]2 years ago
5 0

Answer:

2:140

1:70

Step-by-step explanation:

:)

Montano1993 [528]2 years ago
4 0
420 divide by 6 is 70
70 x 2 is 140
70 x 1 is 70
he drove 140 miles in 2 hours, and 70 miles in an hour
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Somebody please help!!!<br> (Dont judge me I forgot)
ch4aika [34]

Answer:

16. 200+3

17. 30+4+0.1+0.02+0.007

18. 200+70+6+0.1+0.03

19. 30000000+4000000+100000+20000+3000+6

Step-by-step explanation:

4 0
3 years ago
What is 50+_that equal420​
snow_lady [41]

Answer:

370

Step-by-step explanation:

50 + x = 420

x = 420 - 50

x = 370

6 0
3 years ago
Read 2 more answers
a hardware factory produces 3.6 •10^5 bolts in 2400 minutes. what is the factory rate of production in bolts per minute​
Ainat [17]
10^5=100,000
100,000*3.6
360,000
360,000/2400

I believe it’s 150 bolts per minute
5 0
3 years ago
The SAT mathematics scores in the state of Florida for this year are approximately normally distributed with a mean of 500 and a
Greeley [361]
<u></u><u>The correct answer is 47.5%, or 0.475.</u>

Explanation:
The empirical rule states that in any normal distribution:

68% of data will fall within 1 standard deviation of the mean;
95% of data will fall within 2 standard deviations of the mean; and
99.7% of data will fall within 3 standard deviations of the mean.

The mean is 500 and the standard deviation is 100.  This means that 700 is 2 standard deviations away from the mean:

(700-500)/100=200/100=2.

We know that 95% of data will fall within 2 standard deviations from the mean.  However, included in the 95% is data less than the mean and greater than the mean.  Since we are only concerned with the scores from 500 to 700, we only want the half that is greater than the mean:

95/2 = 47.5%, or 0.475.
8 0
3 years ago
Read 2 more answers
Each person in a group of students was identified by year asked
Natalija [7]

Answer:

0.184

Step-by-step explanation:

There are 38 seniors, of which 7 prefer evening classes.

7/38 ≈ 0.184

4 0
3 years ago
Read 2 more answers
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