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3 years ago

11

How to solve 3x / 4 = 8

2 answers:

Bogdan [553]3 years ago

8 0

Multiply each side of the equation by 4/3 .

nikklg [1K]3 years ago

5 0

First you multiply both sides of equation by 4 so you get:

$\frac{3}{4} *x*4=8*4$
$3x=32$

next you devide both by 3
$\frac{3}{3}*x=\frac{32}{3}$

which gives you:
$x=\frac{32}{3}=10\frac{2}{3}$

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yaroslaw [1]

Since you already know that the first 50 meters took 1min you can subtract
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5 0

3 years ago

Solve the equation <br>x=x+3

borishaifa [10]

$x=x+3\ \ \ \ \ \ |subtract\ x\ from\ both\ sides\\\\0=3-FALSE\\\\no\ solution\ (x\in\O)$

8 0

3 years ago

Read 2 more answers

A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the

Anastasy [175]

Answer: 19.4

Step-by-step explanation:

Given

Profit is given in terms of the selling price

$y=-5x^2+194x-900$

to get the maximum price, differentiate y w.r.t x

$\frac{\mathrm{d} y}{\mathrm{d} x}=-5\times 2x+194$

Put $\frac{\mathrm{d} y}{\mathrm{d} x}=0$ to get maximum value

$10x=194\\x=19.4$

Thus, the company must sell it at 19.4

8 0

3 years ago

Use the given map to find the coordinates of a point that lies on the directed line segment from c to d and partitions the segme

Lelechka [254]

Given:

The line segment is passing through the points (-9,-3) and (8,5),

Divide the segment in the ratio of 1:4.

Use the formula,

$\begin{gathered} (\frac{mx_2+nx_1}{m+n},\frac{my_2-ny_1}{m+n}) \\ (x_1,y_1)=(-9,-3) \\ (x_2,y_2)=(8,5) \\ m\colon n=1\colon4 \end{gathered}$

It gives,

$\begin{gathered} (\frac{1(8)+4(-9)}{1+4},\frac{1(5)+4(-3)}{1+4}) \\ (-\frac{28}{5},-\frac{7}{5}) \end{gathered}$

Answer:

$(-\frac{28}{5},-\frac{7}{5})$

8 0

1 year ago

At Adam's Hats, there are 52 baseball caps and 13 other hats. What percentage of the hats are baseball caps?

Solnce55 [7]

Total hats = 52 + 13 = 65

Percentage that are baseball = number of baseball/ total hats x 100.

52/65 = 0.8 x 100 = 80%

80% are baseball hats

3 0

3 years ago