MATHEMATICS MIDDLE SCHOOL

The resistance (R) in a wire increases when the length of the wire (L) increases. Write the correct equation for this scenario, and solve for when the length is 1. Length Resistance 10 2 15 3 a. R = 20 over L; R = 20
b. R = .2L; R = 5
c. R = .2L; R = .2
d. R = 20 over L; R = 5

Answers

Answer 1
Answer:

Answer: c. R = 0.2L ; R =0 .2


Step-by-step explanation:

Given: When length of wire is L_1= 10 units, then resistance of wire R_1==2 ohm

When length of wire is L_2=15 units, then resistance of wire R_2==3 ohm

Since, the resistance (R) in a wire increases when the length of the wire (L) increases. Therefore, they are directly proportional.

(R)/(L)=(R_1)/(L_1)

(R)/(L)=(2)/(10)\n\Rightarrow\ R=0.2L

Now, for Length L=1 unit, we have

R=0.2(1)=0.2

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We have to find how many purple rectangles does Olivia need for 3 scarves. We know that each scarf will have 5 rectangles and 2/5 of the rectangles will be purple: 2/5 * 5 = 2. It means that each scarf will have 2 purple rectangles. And for 3 scarves : 3 * 2 = 6. Answer: She needs 6 purple rectangles.

Closes benchmark for 99

Answers

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What is 9 3/4 as a percent

Answers

The mixfraction 9(3/4) as a percent is 975%.

We have,

To express 9 3/4 as a percent, we can follow these steps:

Step 1: Convert the mixednumber to an improperfraction.

Multiply the whole number (9) by the denominator (4) and add the numerator (3) to get the numerator of the improper fraction. The denominator remains the same.

9 3/4 = (9 * 4 + 3) / 4 = 39/4

Step 2: Convert the fraction to a decimal by dividing the numerator by the denominator.

39/4 = 9.75

Step 3: Convert the decimal to a percent by multiplying by 100.

9.75 * 100 = 975

Therefore,

9 3/4 as a percent is 975%.

Learn more about percentages here:

brainly.com/question/11403063

#SPJ6
975%
To find the answer to this problem and many more like it you first turn the mixed number into a fraction by multiplying the whole number (9) by the denominator (4),  the add the numerator (3) ,(9*4)+3=39, then put it over the denominator (4).
Next you have 39/4, so then you divide the numerator (39) by the denominator (4) and you should get 9.75. finally you multiply 9.75 by 100 then put a percent sign behind it to get your percent. 

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C. {-4,19 }
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Answers

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Answers

Answer:

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Step-by-step explanation:

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Answers

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To find an equivalent fraction to 3/5 we can multiply the numerator and the denominator by any same number. lets do it with 2:-

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(3*3)/(5*3)= (9)/(15)

So, a fraction equilateral tt 3/5 is 9/15.

Hope I helped ya!! xD
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