All categories

3 years ago

What is the value of x in the equation 1/5x –2/3y = 30, when y = 15?

Mathematics

1 answer:

Alex787 [66]3 years ago

3 0

2/3 x 15 = 10
1/5 x 200 = 40

Your Final Answer: 40 - 10 = 30

You might be interested in

Jack broke apart 5x216 as (5x200) + (5x16) to multiply mentally.What strategy did Jack use?

zmey [24]

C is the answer i believe

4 0

3 years ago

Which graph best represents the function f(x) = 3(1.5)x?

jok3333 [9.3K]

Answer:

B). graph of increasing exponential function going through point (0, 3)

Step-by-step explanation:

Given function is $f\left(x\right)=3\left(1.5\right)^x$

Now we need to find about which of the given choices best describes the given function. Where given choices are:

A). graph of increasing exponential function going through point 0, 2

B). graph of increasing exponential function going through point 0, 3

C). graph of increasing exponential function going through point 0, 1

D). graph of increasing exponential function going through point 0, 4

plug x=0 into given function

$f\left(x\right)=3\left(1.5\right)^x$

$f\left(0\right)=3\left(1.5\right)^0=3(1)=3$

Hence graph passes through point (0,3).

growth factor 1.5 is greater than 1 so that means it is increasing function.

Hence correct choice is:

B). graph of increasing exponential function going through point (0, 3)

5 0

3 years ago

Read 2 more answers

How many solutions does the equation sin(4x)= 3/4?

MAVERICK [17]

$sin(4x)= \dfrac{3}{4}$

$4x=sin^-^1( \dfrac{3}{4}), \pi -sin^-^1( \dfrac{3}{4})$

<span>Since sin is a periodic function, add the periodicity.
</span>
$4x=2\pi n+sin^-^1 ( \dfrac{3}{4} ) ,nEZ 

$

$4x=2\pi n-sin^-^1 ( \dfrac{3}{4} ) ,nEZ$

$x= \dfrac{2\pi n+sin^-^1 ( \dfrac{3}{4} ) }{4}, nEZ$

$x= \dfrac{2\pi n+ \pi -sin^-^1 ( \dfrac{3}{4} ) }{4}, nEZ$

8 0

3 years ago

Three times a number subtracted from the product of fifteen and the reciprocal of a number

ASHA 777 [7]

To write the problem out as an equation, let 'n' equal your number.

(15 x 1/n) - 3n

5 0

4 years ago

Read 2 more answers

A bag contains 42 red, 45 green, 20 yellow, and 32 purple candies, you pick one candy at random, find the probability that it is

Pepsi [2]

Answer:

It is $\frac{45}{139}$ or you have a 32.37% chance