2 years ago

Helppppppp i need help

Mathematics

1 answer:

Lunna [17]2 years ago

8 0

Do you need the fraction? I don’t understand what you are asking

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damaskus [11]

we need help? can somebody answer this question

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2 years ago

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Sharon is twice as old as Brian, and in 5 years the sum of their ages will be 25 years. Find their present ages.

Vinil7 [7]

Sharon's age= 2x
Brian's age= x

(2x-5)+(x-5)= 25
3x-10=25
3x=15
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Brian is 5 years old and Sharon is 10

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3 years ago

Solve the equation10=2N + 1

Step2247 [10]

Answer:

N=9/2

Step-by-step explanation:

Question: <u>10=2N+1</u>

1) Subtract 1 from both sides:

9=2N

2) Divide both sides of the equation by 2:

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2 years ago

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A number consists of two digits whose sum is 12. If 16 is added to the number, then one of the digits is four times the value of

NeX [460]

Answer: The number is 12.

Step-by-step explanation:

Since we have given that

Sum of two digits = 12

Let the one's digit be 'x'

Let the ten's digit be '12-x'

So, Original number would be

$x+10(12-x)\\\\=x+120-10x\\\\=-9x+120$

If 16 is added to the number, then one of the digit is four times the value of the other.

According to question, we get that

$-9x+120+16\\\\=-9x+136$

so, the one's digit be 'x'.

Let the ten's digit be '4x'.

so, New number would be

$10x+4x=14x$

According to question, it becomes,

$14x=-9x+136\\\\14x+9x=136\\\\23x=136\\\\x=\dfrac{136}{23}=12$

So, the number would be

$-9x+120=-9\times 12+120=-108+120=12$

Hence, the number is 12.

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2 years ago

X^2 =11+2 sqrt30 find value of X

Fofino [41]

Answer:

If the question goes like this : x²=11+2

then the value of x will be √13

Step-by-step explanation:

x²=11+2

x²=13

x=√13 ans…

7 0

1 year ago