A painting measures 2.4 feet from left to right. It’s hung in the center of a rectangular wall measuring 20 feet from left to ri
1 answer:
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Answer:
In the three days the Amazon stock share rose by
Step-by-step explanation:
Given:
Amazon stock share
rose 4 and 1/2 points on Wednesday
rose 3 and 3/8 points on Thursday
fell 2 and 1/4 points on Friday
To find the overall change.
Solution:
<em>The change in share on Wednesday is given as = </em>
<em>The change in share on Thursday is given as = </em>
<em>The change in share on Friday is given as = </em>
Thus, the over all change is given by:
<em>In order to combine mixed numbers, we will work the whole numbers and the fractions separately.</em>
⇒
⇒
To combine fractions, we will take least common denominator.
<em>The L.C.D. 2,4 and 8 = 8 as it is the least common multiple for all the denominators</em>
So, we multiply the numerators with the corresponding numbers to make the denominators common.
⇒
⇒
Combining the numerators.
⇒
⇒
⇒
The overall change for the three days can be given as :
This means the share rose by
Answer :
Explanation:
Since we have given that
n(U) = 120, where U denotes universal set ,
n(F) = 45, where F denotes who speak French,
n(S) = 42 , where S denotes who speak Spanish,
n(F∪S)' = 50
n(F∪S) = n(U)-n(F∪S) = 120-50 = 70
Now, we know the formula, i.e.
n(F∪s) = n(F)+n(S)-n(F∩S)
⇒ 70 = 45+42-n(F∩S)
⇒ 70 = 87- n(F∩S)
⇒ 70-87 = -n(F∩S)
⇒ -17 = -n( F∩S)
⇒ 17 = n(F∩S)