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3 years ago

Why are 4/10 and 4/100 not equal?

1 answer:

6 0

The same reason 4 dimes and 4 pennies aren't equal.

To put it into decimal terms, 4/10 is 0.40 (or forty cents), whereas 4/100 is 0.04 (or four cents)

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Nat2105 [25]

Free points rights anyways can someone help me with this answer

A 85-kg is clown is fired from rest out of 480-kg cannon. If the clowns speed is 18 meters per second after the firing, then what is the recoil speed of the cannon? (Round your answer to the nearest tenth)

8 0

3 years ago

Find the slope of the line that passes through (10,3) and (3,12).

Gnoma [55]

Answer:

-9/7

Step-by-step explanation:

$slope \: of \: line \\ \\ = \frac{12 - 3}{3 - 10} \\ \\ = \frac{9}{ - 7} \\ \\ = - \frac{9}{7}$

5 0

3 years ago

If students’ scores were normally distributed and the mean was 200 with a standard deviation of 40, then what is the probability

Sonja [21]

Answer:

84%

Step-by-step explanation:

The empirical rule tells you that 68% of the standard normal distribution is within 1 standard deviation of the mean. The distribution is symmetrical, so the amount in the lower tail is (1 -68%)/2 = 16%.

Since the number you're interested in, 240, is one standard deviation above the mean (200 +40), the percentage of interest is the sum of the area of the central part of the distribution along with the lower tail:

68% + 16% = 84%.

4 0

3 years ago

Question is in the picture

MrRa [10]

Answer:

B) 12.5 ft

Step-by-step explanation:

set up a proportion of inches/feet equals inches/feet

let 'h' = height of sign

5.4/18 = 3.75/h

cross-multiply:

5.4h = 67.5

h = 12.5

5 0

3 years ago

Mr. Park paid $85.00 for 4 shirts. Each shirt cost the same amount. What was the cost of each shirt in dollars and cents?

yaroslaw [1]

Answer:

I think you're supposed to do 85/4

Step-by-step explanation:

85 devided by 4

$21.25 for each shirt

5 0

3 years ago