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JulsSmile [24]
3 years ago
6

A candidate scored 32 marks out of 80, find his percentage score

Mathematics
1 answer:
Olin [163]3 years ago
5 0

\large\begin{gathered} {\underline{\boxed{ \rm {\purple{Percentage \:  =  \: \frac{Value}{Total  \: Value}  \:  \times  \: 100 }}}}}\end{gathered}

\bf \longrightarrow \:  \: Percentage \:  =  \:  \frac{32}{8 \cancel0}  \:  \times  \: 10 \cancel0 \\

\bf \longrightarrow \:  \: Percentage \:  =  \:  \cancel \frac {320}{ \:  \:  \: 8 \:  \:  \:  \: } \: \:   ^{40 \: \%}   \\

\bf \longrightarrow \:  \: Percentage \:  =  \: 40 \: \%

<h3><u>Candidate score 40%</u></h3>
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Use the points (0, 4) and (-2, 3) to find the slope of the line and give the equation of this line.​
Sauron [17]

Answer:

Choice C:   m=\frac{1}{2}; y=\frac{1}{2} x+4

Step-by-step explanation:

To find your slope do:

\frac{y^2-y^1}{x^2-x^1}

\frac{3-4}{-2-0}=\frac{-1}{-2} =\frac{1}{2}

that's how you get 1/2

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6 0
2 years ago
Two trucks leave a warehouse at the same time. one travels due west at an average speed of 49 miles per hour, and the other trav
Gre4nikov [31]

Well there can be two different solutions for this but i will choose the easier one. Obviously one requires a system of equations which obviously will involve a lot of thinking and some good algebra solving in order for them to solve.

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4 0
3 years ago
Dairy farmers are aware there is often a linear relationship between the age, in years, of a dairy cow and the amount of milk pr
Jobisdone [24]

Answer:

B. A cow of 5 years is predicted to produce 5.5 more gallons per week.

Step-by-step explanation:

Let M(a) = 40.8-1.1\cdot a, where a is the age of the dairy cow, measured in years, and M(a) is the predicted milk production, measured in gallons per week.

Besides, we consider a_{1} and a_{2}, such that a_{1}\ne a_{2}, we define the difference between predicted milk productions (\Delta M) below:

\Delta M = -1.1\cdot (a_{2}-a_{1}) (1)

If we know that a_{1} = 5\,yr and a_{2} = 10\,yr, then the difference between predicted milk productions is:

\Delta M = -1.1\cdot (10-5)

\Delta M = -5.5\,\frac{gal}{week}

That is, a cow of 5 years is predicted to produce 5.5 more gallons per week than a cow of 10 years. Hence, the right answer is B.

6 0
2 years ago
5/8 didved by 1/4 plz help me with this
Vedmedyk [2.9K]

Answer:

The answer is 2.5 or 5/2 as a fraction.

Step-by-step explanation:

P.S Can I have brainliest?

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