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allochka39001 [22]

3 years ago

11

Need help with this question ASAP.

2 answers:

Rainbow [258]3 years ago

6 0

Answer:

$7=x$

Step-by-step explanation:

Equation

$4x = 7(x - 3)$

we apply distributive property $c(b+a)= bc+ac$

$4x = 7x - 21$

Group similar terms

$21=7x-4x$

Resolve addition / subtraction operations

$21=3x$

clear the x. Dividing both terms by the coefficient that accompanies the x

$\frac{21}{3}=\frac{3x}{3}$

$7=x$

saw5 [17]3 years ago

3 0

Your answers all seem correct.

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A television set was priced $1659 after a 30% discount. What original price before the discount?

almond37 [142]

<h3>Answer: $2370</h3>

=======================================================

Work Shown:

x = price before the discount

30% of x = 0.30x = amount saved

x - 0.30x = 0.70x = price after discount = 1659

0.70x = 1659

x = 1659/(0.70)

x = 2370

8 0

2 years ago

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could someone explain to me what intervals are in algebra? how would i know if it is positive, increasing, negative, or decreasi

aalyn [17]

Answer:

Interval positive and negative

The positive regions of a function are those intervals where the function is above the x-axis. It is where the y-values are positive (not zero). The negative regions of a function are those intervals where the function is below the x-axis. ... y-values that are on the x-axis are neither positive nor negative.

Step-by-step explanation:

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3 years ago

Let R be the triangular region in the first quadrant with vertices at.Points (0,0), (h,0), and (h,r), where r and h are positive

Romashka [77]

Answer:

The answer is " $\pi \int^{h}_{0}(\frac{r}{h} x)^2 \ dx$ "

Step-by-step explanation:

$dv=(Area) \ thickness$

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3 years ago

A line passes through the point (-1, - 8) and has a slope of -6. Write an equation for this line.In slope intercept form

Alenkasestr [34]

$\rule{50}{1}\large\blue\textsf{\textbf{\underline{Question:-}}}\rule{50}{1}$

<em>A line passes through the point (-1, -8) and has a slope of -6. Write an </em>

<em> equation for the line in slope-intercept form.</em>

<em />

<em /> $\rule{50}{1}\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}\rule{50}{1}$

First, let's write the equation of the line in Point-slope form:-

$\Large\text{$y-y_1=m(x-x_1)$}$

Replace y₁ with -8, m with -6, and x₁ with -1:-

$\Large\text{y-(-8)=-6(x-(-1)}$

$\bigstar$ On simplification,

$\Large\text{y+8=-6(x+1)}$

$\bigstar$ Now let's convert it into slope-intercept form:-

$\Large\text{y+8=-6x-6}$

$\bigstar$ <em> </em>On further simplification,

$\Large\text{y=-6x-6-8}$

$\bigstar$ Finally, We get

$\Large\textit{y=-6x-14}$

$\Uparrow\textsf{Our equation in slope-intercept form}$

<h3>Good luck with your studies.</h3>

#TogetherWeGoFar

$\rule{70}{1}\smile\smile\smile\smile\rule{70}{1}$

4 0

2 years ago

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