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Helen [10]
3 years ago
13

The age of father is 4nyears.If the age of his daughter is(2n-9)years.find their total age.​

Mathematics
1 answer:
8_murik_8 [283]3 years ago
4 0

Answer:

4n+(2n-9)

4n+2n-9

6n-9 =the total age

6n=9

divide by 6 both sides.

n=9/6

n=1.5 years.

substitute the value of n in the age of the father and the daughter.

Age of father=4×1.5

6years.

Age of Daughter = (2×1.5)-9

3-9

=-6 years

Total age

6-6=0

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Answer:

The circumference of the cookie is 37.68 inches.

Step-by-step explanation:

We have,

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r=\sqrt{\dfrac{A}{\pi}} \\\\r=\sqrt{\dfrac{113.04}{3.14}} \\\\r=6\ \text{inch}

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3 years ago
The sum of two numbers is 0. Twice the smaller number subtracted from 3 times the larger number is 10. Let x represent th larger
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The sum of two numbers is zero.
x + y = 0
y = -x

<span>Twice the smaller number subtracted from 3 times the larger number is 10.
Let x represent the larger number and y represent the smaller number.

Twice the smaller number: 2y

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</span>Twice the smaller number subtracted from 3 times the larger number is 10. 
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The equations are:

y = -x
y = 3/2 x - 5

The answer is the first choice.
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Step-by-step explanation:

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