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3 years ago

Fill in the blank: _?__(x+3)=7x+21

Mathematics

2 answers:

posledela3 years ago

7 0

Answer:

The fill-in-the-blank is 7.

Step-by-step explanation:

By factoring out the greatest common factor, 7, you will get 7(x + 3).

7(x + 3) = 7x + 21

Delvig [45]3 years ago

5 0

Answer:

Step-by-step explanation:

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The sum of 3 consecutive number multiples of 6 is 162 find thesse numbers

MAXImum [283]

let the numbers are x , x+1 ,x+2

∴ 6 [ x + (x+1) +(x+2) ] = 162

∴ x + (x+1) + (x+2) = 162/6 = 27

∴3x + 3 = 27

∴ 3x = 27 - 3 = 24

∴ x = 24/3 = 8

<u>So, the numbers are 8 , 9 , 10</u>

7 0

3 years ago

The midpoint of RS is M(1, 2). One endpoint is R(-6, 6). Find the coordinates of endpoint S.

AysviL [449]

Answer:

The coordinates of point S are (8,-2)

Step-by-step explanation:

we know that

The formula to calculate the midpoint between two points is equal to

$M=(\frac{x1+x2}{2},\frac{y1+y2}{2})$

Let

Point S(x2,y2)

substitute the given values

$(1,2)=(\frac{-6+x2}{2},\frac{6+y2}{2})$

<em>Solve for x2</em>

$1=(-6+x2)/2\\2=-6+x2\\x2=2+6=8$

<em>Solve for y2</em>

$2=(6+y2)/2\\4=6+y2\\y2=4-6=-2$

therefore

The coordinates of point S are (8,-2)

5 0

3 years ago

Jack is growing Red wiggler worms to help make compost. He measured the lengths of two young worms. The 10- day old worm is 10/1

Alex777 [14]

Answer:

Answer: The 20-day old worm is inches more longer than the 10-day old worm. If someone says the same thing as me, they copied me—

Step-by-step explanation:

can i get a brainliest-?

5 0

2 years ago

There are 6 boys to every 9 girls in the sixth grade. There are a total of 75 students in the sixth grade. There are how many bo

nadya68 [22]

Hi!

Given the ratio of boys to girls, which is 6/9, we can find the number of boys in a total of 75 students like this:

(6/9) * 75 = (6*75)/9 = 450/9 = 50

There are 50 boys.

Hope this helps!

8 0

3 years ago

Read 2 more answers

II. The following figure shows an infinite zigzag path with each zag

nataly862011 [7]

The length of the infinite zigzag path is 1

<h3>How to determine the length</h3>

Note that the infinite zigzag path is embedded in an isosceles triangle

Using angle π/4, we have that

Tan π/4 = opposite/ adjacent

$tan \frac{3. 412}{4} = \frac{x}{1}$

$tan 0. 7855 = x$

$x = 0. 014$

To find the longer part 'y', use the Pythagorean theorem

$y^{2} = (0.014)^2 + (1)^2$

$y^2 = 1.879 * 10^-4 + 1$
$y^2 = 1. 00$

$y = \sqrt{1. 000}$

$y = 1. 000$

The length of the infinite zigzag path is the same as the length of the longer part of the triangle which equals 1.

Thus, the length of the infinite zigzag path is 1

Learn more about the Pythagorean theorem here:

https://brainly.in/question/48490459

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8 0

1 year ago