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3 years ago

Solve the equation. n over 10 plus space 7 space equals space 10

Mathematics

1 answer:

UNO [17]3 years ago

4 0

Answer:

Step-by-step explanation:

Given the equation;

n/10 + 7 = 10

We are to find the value of n

Subtract 7 from both sides

n/10 + 7 - 7 = 10 - 7

n/10 = 3

Cross multiply

n = 10 * 3

n = 30

<em>Hence the solution to the equation is 30</em>

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Divide Rs 8100 for three persons in the proportion of 2:3:4

Andru [333]

Step-by-step explanation:

Money = Rs 1800

Ratio = 2:3:4

1st Person = 2x

2nd Person = 3x

3rd Person = 4x

X = ?

2x + 3x + 4x = 1800

9x = 1800

X = 200

1st Person = 2x = 2×200 = <u>Rs 400</u>

2nd Person = 3x = 3×200 = <u>Rs 600</u>

3rd Person = 4x = 4×200 = <u>Rs 800</u>

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3 years ago

The approximate value of 5.1 million x 2.2 thousand is? use scientific notation

Sliva [168]

11,220,000,000 is the answer for this question.

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The sum of four consecutive odd number is 72.Find the number

ArbitrLikvidat [17]

Answer:

15, 17, 19, and 21

Step-by-step explanation:

make the equation

x+x+2+x+4+x+6=72

simplify

4x+12=72

x+3=18

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2 years ago

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This one is algebra.....

vodomira [7]

${Hello~!\:}$

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3 years ago

20 pounds to 16 pounds is what present

ExtremeBDS [4]

Answer:

Decreased by 20%.

16 lbs is 80% of 20 lbs.

Step-by-step explanation:

$\frac{y}{100} :\frac{16}{20}$

y × 20 = 16 × 100

20y = 1600

20y ÷ 20 = 1600 ÷ 20

y = 80

100% - 80% = 20%

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3 years ago

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