All categories

2 years ago

Find four consecutive odd integers such that 5 times the sum of the first and the third is 15 more than 5 times the fourth.

Mathematics

1 answer:

Dvinal [7]2 years ago

7 0

Answer:

The required numbers are :

$\boxed{ \boxed{ 5,7,9 \: and \: 11}}$

You might be interested in

Four and sixty eight thousandths in decimal form

kumpel [21]

Answer:4.068

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Plz help! I will make you the brainliest! Thanks!

Andrews [41]

So to start you will need to divide by -5 then -5 divided by -5 cancelle

4 0

3 years ago

Read 2 more answers

A study of the relationship between age and various visual functions (such as acuity and depth perception) reported the followin

maks197457 [2]

Answer:

(a) $\sum x_i=56.68$ and $\sum x_i^2=197.46$

(b) The sample variance is $s^2=0.530$ and the sample standard deviation is $s=0.728$

Step-by-step explanation:

(a)

The sum of these 17 sample observations is

$\sum x_i=2.79\:+2.57+\:2.73\:+3.75\:+2.27+\:2.75+\:4.00+\:4.22+\:3.88+\:4.35+\:3.41+\:4.57+\:2.38+\:3.73\:+2.75+\:3.47+\:3.06\\\\\sum x_i=56.68$

and the sum of their squares is

$\sum x_i^2=2.79^2\:+2.57^2+\:2.73^2\:+3.75^2\:+2.27^2+\:2.75^2+\:4.00^2+\:4.22^2+\:3.88^2+\:4.35^2+\:3.41^2+\:4.57^2+\:2.38^2+\:3.73^2\:+2.75^2+\:3.47^2+\:3.06^2\\\\\sum x_i^2=197.46$

(b)

The sample variance, denoted by $s^2$ , is given by

$s^2=\frac{S_{xx}}{n-1}$

where $S_{xx} =\sum x_i^2-\frac{(\sum x_i)^2}{n}$

Applying the above formula we get that

$S_{xx}=197.46-\frac{(56.68)^2}{17}\\\\S_{xx} =8.482$

$s^2=\frac{8.482}{17-1}=0.530$

The sample standard deviation, denoted by <em>s</em>, is the (positive) square root of the variance:

$s=\sqrt{s^2}$

Applying the above formula we get that

$s=\sqrt{0.530}=0.728$

3 0

2 years ago

Students are voting on the color of T-shirts to wear on their field trip. There are 160 students–65 boys and 95 girls–going on t

Zina [86]

Answer:

that a more girls will be selected then boys

Step-by-step explanation:

plz mark biarnliest

5 0

2 years ago

Read 2 more answers

Oh a number line what is the distance between -54 and 73

Ghella [55]

The correct answer is 127.

5 0

3 years ago

Read 2 more answers

Find four consecutive odd integers such that 5 times the sum of the first and the third is 15 more than 5 times the fourth.​

Find four consecutive odd integers such that 5 times the sum of the first and the third is 15 more than 5 times the fourth.