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Natalija [7]
3 years ago
9

On a test, the multiple choice portion makes up 80% of the final score and the essay portion makes up 20% of the final score. Ta

nya scored an 86 on the multiple choice portion and a 93 on the essay portion of the test. What was Tanya's test score?
Mathematics
2 answers:
Tatiana [17]3 years ago
8 0
To determine the final score of Tanya, we simply add the product of the percentages given with the score she gained in those category. That is,
                        Tanya's score = (0.80)(86) + (0.2)(93)
                         Tanya's score = 87.4
Therefore, Tanya's final score is 87.4%. 
BARSIC [14]3 years ago
7 0

The answer is

87.4 I swear to my life I did't copy took the test and got the answer right

I hope it helped you thank you and please rate this a grate rate.   :D

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576

Step-by-step explanation:

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3 years ago
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The answer to your question is 440 in³, this is my result I can not see the height in the picture I think the number is 40 in

Step-by-step explanation:

Data

length of a side = 6 in

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Process

1.- Calculate the area of the base

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    = 36 in²

2.- Calculate the volume of the Pyramid

Volume of a square pyramid = 1/3 (36 x 40)

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7 0
3 years ago
Write an equation for the line parallel to the given line that contains C
Ksenya-84 [330]

Answer:

The equation would be y = -2x + 10

Step-by-step explanation:

To find the line parallel going through the given point, first note that parallel lines have the same slope. This means that we have a slope of -2 in the original line, therefore the parallel line will also have a slope of -2. Now we can use this and the given point to find the line using point-slope form.

y - y1 = m(x - x1)

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7 0
3 years ago
For three consecutive years, Sam invested some money at the start of the year. The first year, he invested x dollars. The second
faust18 [17]

\bf \stackrel{\textit{Sam invested the first year}}{x} \qquad \qquad  \stackrel{\textit{2nd year is \$2,000 less than \underline{x}}}{x-2000} \\\\\\ \stackrel{\textit{3rd year is \$1,000 more than \underline{x}}}{x+1000}\qquad \qquad \boxed{\stackrel{\textit{Sam total investment}}{(x)+(x-2000)+(x+1000)}}\\\\ -------------------------------\\\\ \stackrel{\textit{Sally invested the first year \$1000 less than \underline{x}}}{x-1000}


\bf \stackrel{\textit{2nd year is \$1500 less than \underline{2x}}}{2x-15000}\qquad \qquad \stackrel{\textit{3rd year is \$1400 more than \underline{x}}}{x+1400} \\\\\\ \boxed{\stackrel{\textit{Sally total investment}}{(x-1000)+(2x-1500)+(x+1400)}}


\bf \stackrel{\textit{Sam total investment}}{(x)+(x-2000)+(x+1000)}=\stackrel{\textit{Sally total investment}}{(x-1000)+(2x-1500)+(x+1400)} \\\\\\ 3x-1000=4x-1100\implies 100=x\impliedby \textit{Sam invested the first year} \\\\\\ \stackrel{\textit{Sally invested last year}}{x+1400}\implies 10+1400\implies 1500

4 0
4 years ago
A zoo has 15 emperor penguins The emperor penguins make up 30% of all the penguins at the zoo. How many penguins live at the zoo
r-ruslan [8.4K]

Let x + 15 = total penguins

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Double Check

15 / 50 * 100 = 30%  Correct!!!


3 0
3 years ago
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