All categories

2 years ago

How many solutions does -3+9v=8v have

Mathematics

2 answers:

Alik [6]2 years ago

5 0

Answer:

-3+9v=8v

By moving the terms,
9v-8v=3
1v=3
1v/1=3/1

So -3+9v=8v has one solution.

Pachacha [2.7K]2 years ago

3 0

Answer:

-3 = 8v-9v

-3 = -1v

v = -3/-1

v = 3

ONE SOLUTION

You might be interested in

The slope-intercept form of a line is y=mx+b .

d1i1m1o1n [39]

Answer:

$m$ is the slope and $b$ is the y-intercept.

Step-by-step explanation:

The slope-intercept form of a line is given as:

$y=mx+b$

Here, the coefficient of $x$ represents the slope of the line.

The coefficient of $x$ is $m$ and hence the slope.

y-intercept is the value of $y$ for which is $x$ is 0.

Now, if we put $x$ as 0 in the above equation, we get

$y=m(0)+b\\ y=0+b\\ y=b$

Therefore, y-intercept is $b$ .

Hence, for the line with slope-intercept form $y=mx+b$ , $m$ is the slope and $b$ is the y-intercept.

3 0

3 years ago

Please answer this question

max2010maxim [7]

As it is given :

Present age of mom : Present age of son = 6 : 1

Therefore let :

Mother's age be 6x

Son's age be x

Ages after 10 year :

Mom's age = 6x + 10

Son's age = x + 10

<h3>Part three :</h3>

The ages after 10 years are given in rational of 8 : 3.

Which means :

Mom's age after 10 years : Son's age after 10 years = 8 :3.

Now :

$\scriptsize \purple{ \boxed{ \scriptsize \dfrac{ \text{Mom's age after 10 years}}{ \text{son's age after 10 years}}= \dfrac{8}{3} }} \star$

$\\ \\$

So :

$\small\sf \dashrightarrow \dfrac{6x + 10}{x + 10} = \sf \dfrac{8}{3}$

$\\ \\$

$\small\sf \dashrightarrow \dfrac{3(6x + 10)}{x + 10} = \sf \dfrac{8}{1}$

$\\ \\$

$\small \sf \dashrightarrow \dfrac{18x +30}{x + 10} = \sf \dfrac{8}{1}$

$\\ \\$

$\small\sf \dashrightarrow \dfrac{18x +30}{1} = \sf \dfrac{8(x + 10)}{1}$

$\\ \\$

$\small \sf \dashrightarrow 18x +30= \sf 8(x + 10)$

$\\ \\$

$\small\sf \dashrightarrow 18x +30= \sf 8x + 80$

$\\ \\$

$\small\sf \dashrightarrow 18x - 8x +30= \sf 80$

$\\ \\$

$\small \sf \dashrightarrow 10x +30= \sf 80$

$\\ \\$

$\small \sf \dashrightarrow 10x = \sf 80 - 30$

$\\ \\$

$\small \sf \dashrightarrow 10x = \sf 50$

$\\ \\$

$\small \sf \dashrightarrow \dfrac{10x}{10} = \sf \dfrac{50}{10}$

$\\ \\$

$\small \sf \dashrightarrow \dfrac{1\cancel0x}{1\cancel0} = \sf \dfrac{5\cancel0}{1\cancel0}$

$\\ \\$

$\small\bf \dashrightarrow x = \pink 5$

$\\$

We know :

$\footnotesize \hookrightarrow \sf Son's \: age = x$

$\footnotesize \hookrightarrow \sf Son's \: age = \red{5 \: years}$

$\\ \\$

$\footnotesize \hookrightarrow \sf Mother's \: age = 6x$

$\footnotesize\hookrightarrow \sf Mother's \: age = 6 \times 5$

$\footnotesize \hookrightarrow \sf Mother's \: age = \bf \red{30 \: years}$

And all we are done ! ㋛

4 0

2 years ago

This question has two parts. First, answer Part A. Then, answer Part B. Part A Fill in the blanks to complete the sentence. A ta

myrzilka [38]

Answer:

Step-by-step explanation:

6 0

3 years ago

Round 915 to the nearest ten

solong [7]

920 because 15 is closer to 20 than to 10

6 0

3 years ago

The area of a rectangle is at least 115 square centimeters. The width of the rectangle is 5 centimeters and the length of the re

Natali [406]

The census is 60 because it’s obviously when you divided

3 0

2 years ago