Answer:
Exact Form:
√14
Decimal Form:
3.74165738
Step-by-step explanation:
The weighted mean if the quizzes each count for 20% and the final exam counts for 40% of the final grade rounded to one decimal place is <u>18.8</u>
Mean is the average set of numbers.
Given the Elaine quiz grades to be 90, 83 and 64
40% of the final grade will be expressed as:
20% of 90 = 18
20% of 83 = 16.6
20% of 64 = 12.8
If the quiz count for 40% of the final grade, then her final grade will be:
40% of 69 = 27.6
Take the weighted mean
Mean = Sum of scores/Sample size
Mean = (18+16.6+12.8+27.6)/4
Mean = 75/5
Mean = 18.75
Hence the weighted mean if the quizzes each count for 20% and the final exam counts for 40% of the final grade rounded to one decimal place is 18.8
Learn more here: brainly.com/question/23035749
There are 12 pencils.
<span>Red pencils + Blue pencils = 12 </span>
<span>There are twice as many red pencils as blue pencils </span>
<span>Red pencils = Blue x 2 </span>
<span>Substitute Red Pencils in the first question with blue x 2 </span>
<span>So the first equation is 2 x blue + blue = 12 </span>
<span>This will equal 3 blues = 12 </span>
<span>Divide both sides by 3 </span>
<span>Blues = 4 pencils </span>
<span>Reds = 2 x blues </span>
<span>Reds = 2 x 4 </span>
<span>Red = 8 pencils</span>
Answer:
![\displaystyle 79°](https://tex.z-dn.net/?f=%5Cdisplaystyle%2079%C2%B0)
Step-by-step explanation:
The m∠x is 79°, according to the Alternate Exterior Angles Theorem.
I am joyous to assist you anytime.
* That does NOT look like an acute angle because 79° is considered an acute angle, since it is <em>less</em><em> </em><em>than</em><em> </em>90°.
Answer:
14 glasses
Step-by-step explanation:
7/8 divide by 1/16=14 glasses