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3 years ago

Need all the answers can someone give me all the answers thanks

Mathematics

1 answer:

Orlov [11]3 years ago

5 0

1) 3 hours 21 minutes
2) 1 hour 50 minutes
3) 2 hours 13 minutes
4) 2 hours 16 minutes
5) 3 hours 25 minutes
6)1 hour 29 minutes
7)1 hour 16 minutes
8) 3 hours 24 minutes
9) 4 hours 14 minutes
10) 3 hours 45 minutes
11) 4 hours 22 minutes
12) 2 hours 58 minutes
13) 1 hours 24 minutes
14) 1 hours 14 minutes
15) 4 hours 23 minutes

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True or false 120% of a whole number is always greater than the number? and why?

Stells [14]

I can only use math to explain it. What is 100%?
100% = $\frac{100}{100}$
percent means per 100.
so 120% = 120/100 = 1.2
120% of a whole number. For example 120% * 10 = $\frac{120}{100} * 10$ = 12
is it greater than 10.

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2 years ago

Read 2 more answers

If 3x was the opposite of -5, what is the value of x?

makkiz [27]

Answer:

This would mean 3x=5

so to isolate the x, we divide 5 by 3

and get x=5/3

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2 years ago

Convert the following decimals into rational numbers:<br>1.4325

matrenka [14]

Answer

$\frac{573}{400}$

step-by-step explanation:

$\frac{1.4325}{1}$ × $\frac{10000}{10000}$ = $\frac{14325}{10000}$

Simplify

$\frac{14325}{10000}$ ÷ $\frac{25}{25}$ = $\frac{573}{400}$

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2 years ago

When mrs. myles gave a test, the scores were normally distributed with a mean of 72 and a standard deviation of 8. this means th

irina [24]

The empirical rule states that in a normal distribution,
68% of data is within 1 std deviation of the mean
95% of data is within 2 std deviation of the mean
99.7% of data is within 3 std deviation of the mean

In this case 95% of the cases would be within two std deviations of the mean
mean - 8 and mean + 8
72 - 8 = 64 and 72 + 8 = 80

then 95% of the scores are between 64% and 80% on the test.

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2 years ago

Please help me ASAP!!!

dalvyx [7]

Answer:

Step-by-step explanation:

8 - 11 = -3 :)

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2 years ago