1 year ago

Find the value of x.

1 answer:

4 0

Because corresponding sides of similar figures are in proportion, we can obtain the equation:

(x+3)/4 = (2x-4)/3

Multiplying both sides by 12,

3(x+3)=4(2x-4)
3x+9=8x-16
x=5

You might be interested in

You drink a beverage with 120 mg of caffeine. Each hour, the caffeine in your system decreases by about 12%. How long until you

uysha [10]

Answer:

19.44 hours, about 19 hours 26 minutes

Step-by-step explanation:

The exponential equation that describes your caffeine level can be written as ...

c(t) = 120·(1 -0.12)^t . . . . where t is in hours and c(t) is in mg

We want to find t for c(t) = 10, so ...

10 = 120(0.88^t)

10/120 = 0.88^t . . . . . . . divide by 120

log(1/12) = t·log(0.88) . . . take logarithms

t = log(1/12)/log(0.88) ≈ 19.4386

It will take about 19.44 hours, or 19 hours 26 minutes, for the caffeine level in your system to decrease to 10 mg.

3 0

3 years ago

Please help its very desperate and if i could get someone to help me on this whole assignment it would be awesome

Serhud [2]

Answer:

-13/20

Step-by-step explanation:

-0.65=-65/100

=13/20

5 0

1 year ago

8x + 6 - 2x = 34 x= ?

e-lub [12.9K]

8x + 6 - 2x = 34x

Simplify 8x +6 - 2x to 6x + 6:
6x + 6 = 34x

Subtract 6x from both sides:
6 = 34x- 6x

Simplify 34x - 6x to 28x:
6 = 28x

Divide both sides by 28:
$\frac{6}{28}$ = x

Simplify $\frac{6}{28}$ to $\frac{3}{14}$ :
$\frac{3}{14}$ = x

Now switch sides and the answer is:

x = $\frac{3}{14}$

:) <3

5 0

3 years ago

Read 2 more answers

If the salesperson earned a $1500 commission, what was the price of the car? Determine the price

dalvyx [7]

Answer:

it's 7500

Step-by-step explanation:

20% of 7500 is 1500. General tip, commission is usually 25%

7 0

2 years ago

Help pls and thxxxxxxx