A wheel spines at a rate of 41 revolutions per minute. how many revolutions per hour does it spin

1 answer:

8 0

This is simple math, you know 60 minutes in 1 hour, so do 60 x 41 = 2,460

So it spins 2,460 times per hour.

Hope this helps!

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the united states currently has 50 states what fraction of the states had become a part of the united states by 1795?

ikadub [295]

By 1795 there were 15 states.

15
----
50

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3 0

3 years ago

What is 4 3/4 + 7/8 showing all work

Mekhanik [1.2K]

$4 \frac{3}{4} + \frac{7}{8}$

Convert mixed numbers to improper fractions

$= \frac{19}{4} + \frac{7}{8}$

Find de LCD for 4 and 8 :

Factor each denominator into its primes:

$4 = 2^2
$

$8 = 2^3$

Find the least common denominator $2^3 = 8$

Adjust fractions based on the LCD :

$\frac{19*2}{8} + \frac{7}{8}$

Since the denominators are equal , combine the fractions:

$\frac{2*19+7}{8}$

$\frac{38+7}{8}$

$= \frac{45}{8}$

Therefore:

Convert improper fractions to mixed numbers

$= 5 \frac{5}{8}$

hope this helps!

7 0

3 years ago

Help plz:)))I’ll mark u Brainliest

Taya2010 [7]

Answer:

$20$ ft

Step-by-step explanation:

We know that the height of the object and the height of the shadow it casts are proportional. Therefore, if we let the length of the tree be $x$ , we can set up the following proportion to solve for it: