All categories

3 years ago

Ax + bx - 15 = 0;x How do you solve this?

Mathematics

1 answer:

Pani-rosa [81]3 years ago

7 0

Answer:

Step-by-step explanation:

$ax+bx-15=0\\=> (a+b)x-15=0\\=>(a+b)x=15\\=>x=\frac{15}{(a+b)}$

You might be interested in

there were 132 children at the museum on Saturday. on Sunday, there were 61 children. how many children were there on Saturday a

NISA [10]

132 children + 61 children = 193 children

Unless some of the children who went on Sunday also went on saturday.

8 0

3 years ago

Read 2 more answers

Which form of a line is easiest to find a point and the slope? slope intercept form standard form Ax+By=C point slope form

IrinaVladis [17]

Answer:

pp fatr

Step-by-step explanation:

nonononon

8 0

3 years ago

Read 2 more answers

After 4 days, a bookstore has 140 copies of a new title still on hand. After 9 days, the bookstore has 50 copies still on hand.

alexira [117]

Answer:

$c(t) =-18t +212$

Step-by-step explanation:

Given

$(t_1,c_1) = (4,140)$

$(t_2,c_2) = (9,50)$

Required

Determine the equation

First, we calculate the slope (m)

$m = \frac{c_2 - c_1}{t_2 - t_1}$

$m = \frac{50 - 140}{9-4}$

$m = \frac{-90}{5}$

$m = -18$

The equation is then calculated as:

$c =m(t - t_1) + c_1$

$c =-18*(t - 4) + 140$

$c =-18t +72 + 140$

$c =-18t +212$

Hence, the function is:

$c(t) =-18t +212$

8 0

3 years ago

a rectangle has a length of 12 units and an unknown width, x. using p to represent the perimeter and a to represent the area, wr

Amanda [17]

$\begin{gathered} L\text{ = 12} \\ \text{Breadth / width = x} \\ \text{Area, a = L }\times\text{ B} \\ \text{ = 12 }\times\text{ a } \\ \text{ = 12a} \\ \text{Perimeter, P: = 2(L + B)} \\ \text{ = 2(12 + x)} \\ \text{ = 24 + 2x} \\ \end{gathered}$

4 0

1 year ago

Which answer shows y+2x<4x-3,rewritten to isolate y and its graph?

ra1l [238]

The inequality is y < 2x - 3 and the graph of the inequality is graph (a)

<h3>How to isolate y?</h3>

The inequality is given as:

y + 2x < 4x - 3

Subtract 2x from both sides of the inequality

y < 2x - 3

The above inequality uses the < symbol.

This means that the line of the inequality is a dotted line, it is shaded to the right and it crosses the y-axis at y = -3

Hence, the graph of the inequality is graph (a)