MATHEMATICS HIGH SCHOOL

4/n+9 = 2/7


What is the answer please!

Answers

Answer 1
Answer:

Answer:

5

Step-by-step explanation:

Assuming the n+9 is in the denominator, start by cross multiplying.

multiply the n+9 by 2 and 4 by 7 to form the eqution 2n+18 = 28.

subtract the 18 from both sides to form the equation 2n = 10.

divide both sides by 2 to answer n = 5.

Another method is to think how to create equivalent fractions. to have 4/n+9 equal 2/7, the 2/7 is equivalent to 4/14. that means that n+9 is equivalent to 14, because the numerator are equal to each other. if n+9 = 14, then n = 5.

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5-x< 13
Idk what it si

Answers

Answer:

Step-by-step explanation:

5-x< 13

-5      -5

-x< 8

Answer:

-8

Step-by-step explanation:

5-x<13

-x<13-5

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What is 2x+10=3x-50 on vertical opp angles

Answers

Answer:

Step-by-step explanation:

2x+10 = 3x - 50
2x-3x = -60
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Could -2 be used as a base to rewrite 32? 64? Why or why not

Answers

for 32 no, because  ( -2 )⁵  = -32
for 64 yes, because    (-2)⁶  =  64
as a general rule a negative number raised to a odd number will give a negative number
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Answer:  A base of − cannot be used to rewrite because (−)

= −. A base of − can be used to rewrite because

(−)

= . If the exponent, , is even, (−)

will be positive. If the exponent, , is odd, (−)

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Step-by-step explanation:

Please help with these.

Answers

the answer to the question

mario went on a hike with his friends. they hiked 2,24 miles an hour for 8 hour. how many miles did they hike in all

Answers

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He traveled 1792 miles.
I hope you understand. :-)
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Answers

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