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3 years ago

Sarah scored 68 out of 80 in a test.Write her score as a simplified fraction

Mathematics

1 answer:

attashe74 [19]3 years ago

5 0

$\frac{68}{80} \\ \\ \frac{(4)17}{(4)20} \\ \\ \boxed{ \frac{17}{20}}$

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I NEED HELP ASAP PLEASEE THANK YOUUU

Viefleur [7K]

Answer:

Step-by-step explanation:

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2 years ago

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Seven more than one half a number as an equation

romanna [79]

Answer:

1/2x+7

Step-by-step explanation:

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3 years ago

A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a single-strand electric

larisa86 [58]

Answer:

525 x 1,050

A = 551,250 m²

Step-by-step explanation:

Let 'L' be the length parallel to the river and 'S' be the length of each of the other two sides.

The length of the three sides is given by:

$2S+L=2,100\\ L=2100-2S$

The area of the rectangular plot is given by:

$A=S*L\\A=S(2100-2S)\\A=2100 S -2S^2$

The value of 'S' for which the area's derivate is zero, yields the maximum total area:

$\frac{dA(S)}{dS}=\frac{d(2100 S -2S^2)}{dS}\\0= 2100 - 4S\\S=525$

Solving for 'L':

$L=2100-(2*525)\\L=1,050$

The largest area enclosed is given by dimension of 525 m x 1,050 and is:

$A = 525*1,025\\A=551,250\ m^2$

5 0

3 years ago

What are the FACTORS of this equation?

Free_Kalibri [48]

um i would say 25 all together

8 0

3 years ago

The students at a High School earned money for an international animal rescue foundation. 82 seniors earned an average $26.75 pe

Anon25 [30]

Answer: A. $16.13

Step-by-step explanation:

Total students = 82+74+96+99 =351

Sum of earnings of 82 seniors = $26.75 x 82= $2193.5

Sum of earnings of 74 juniors = $12.25 x 74 = $906.5

Sum of earnings of 96 sophomores = $15.50 x 96 = $1488

Sum of earnings of 99 freshmen = $10.85 x 99 = $1074.15

Total earnings = $2193.5 + $906.5+ $1488 +$1074.15

= $5662.15

(Total earnings) ÷ (Total students )

= $5662.15÷ 351

= $16.13

4 0

3 years ago