Ask question

Ask question

All categories

3 years ago

5

Gordon is 5 years older then Krutika. David is 6 years younger than krutika if the total of their age is 86 how old is the eldes

t of them

1 answer:

Alisiya [41]3 years ago

8 0

Answer:

Gordan is the eldest and he is 34.

Step-by-step explanation:

Well let Krutica’s age = x

K = x

G = x+5

D = x-6

K+G+D = 86

x + x+5 + x-6 = 86

3x - 1 = 86

3x = 87

x = 29

Gordon is the oldest so G = 29+5

G = 34

You might be interested in

In a geometric sequence, a4 = 54 and a7 = 1,458. what is the 12th term? <br><br> answer: B) 354,294

slamgirl [31]

Option B:

The 12th term is 354294.

Solution:

Given data:

$a_4=54$ and $a_7=1458$

To find $a_{12}:$

The given sequence is a geometric sequence.

The general term of the geometric sequence is $a_n=a_1\ r^{n-1}$ .

If we have 2 terms of a geometric sequence $a_n$ and $a_k$ (n > K),

then we can write the general term as $a_n=a_k\ r^{n-k}$ .

Here we have $a_4=54$ and $a_7=1458$ .

So, n = 7 and k = 4 ( 7 > 4)

$a_7=a_4\ .\ r^{7-4}$

$1458=54\ . \ r^3$

This can be written as

$$r^3=\frac{1458}{54}$

$$r^3=27$

$$r^3=3^3$

Taking cube root on both sides of the equation, we get

r = 3

$a_{12}=a_7\ .\ r^{12-7}$

$=1458\ .\ r^5$

$=1458\ .\ 3^5$

$a_{12}=354294$

Hence the 12th term of the geometric sequence is 354294.

7 0

2 years ago

Consider x.y = z. If z is an irrational number, what can be said about x and y?

Sati [7]

X×y＝z
If z is an irrational number, it can be said that x and y are also irrational.

Hope my answer helped u :)

8 0

3 years ago

Sixteen is 64% of what number?<br><br> A. 12<br> B. 48<br> C. 32<br> D. 25

NNADVOKAT [17]

Answer:

D. 25

Step-by-step explanation:

16 divided by 64% is 25

4 0

2 years ago

Read 2 more answers

Which is the equation of a line parallel to the line with the equation y= 1/4x +2

natta225 [31]

Answer:

Any line with slope 1/4 like y=1/4x -5.

Step-by-step explanation:

Parallel lines never cross and therefore have the same exact slope. Since slope intercept form is y=mx+b and m is slope, then y=1/4x+2 has a slope of 1/4. Any line with a slope of 1/4 will be parallel. Example: y=1/4x - 5

3 0

3 years ago

You spend $24 on school supplies. You purchase pencils for $1 each and pens for $2 each. You purchase a total of 20 pens and pen

Phantasy [73]

You purchased 4 pens and 16 pencils.

7 0

3 years ago