3 years ago

What is the solution to 4/5=20/(x-5)? answer please

Mathematics

2 answers:

salantis [7]3 years ago

4 0

Answer:

x=30

Step-by-step explanation:

viktelen [127]3 years ago

3 0

Answer:

x =30

Step-by-step explanation:

in order to evaluate the solution 4/5=20/(x-5)?

solution

the first step to take is to cross multiply

4/5=20/(x-5)

we have,

5 x 20 = 4 ( x -5)

100 = 4x - 20

combine the like terms

100+20 = 4x

120 = 4x

divide both sides by the coefficient of x

120/4 = 4x/4

30 = x

x =30

therefore the value of x in the expression 4/5=20/(x-5)? is 30

You might be interested in

A rectangle has vertices E (-4,8), F(2,8), G(2,-2) and H (-4,-2). The rectangle is dilated with the origin as the center of dila

bezimeni [28]

Answer:

3.5

Step-by-step explanation:

The

3 0

3 years ago

6x+2y=18 can someone please help me with this

Mice21 [21]

Answer: m=-3

Step-by-step explanation: I know okie i jast want points

8 0

2 years ago

A circle that is centered at the origin contains the point (0,4). How can you prove or disprove that the point (2,

natali 33 [55]

If the circle is at the origin and (0,4) is a point on the circle then the radius of the circle is:

r^2=0^2+4^2

r^2=16

r=4

so we can check that the other point is four units from the origin and thus also on the circle...

d^2=2^2+6^2

d^2=4+36

d^2=40

since d^2>r^2, (2,6) is outside the circle...

8 0

2 years ago

Read 2 more answers

A simple random sample of 90 is drawn from a normally distributed population, and the mean is found to be 138, with a standard d

Naddik [55]

The critical values for a 90% confidence interval are approximately $\pm1.645$ , so the confidence interval in this case is roughly

$138\pm1.645\dfrac{34}{\sqrt{90}}=(132.1,143.9)$

8 0

3 years ago

Read 2 more answers

Write in scientific notation a) 5700000

vitfil [10]

Answer:

5700000 in scientific notation

${5.7} \times {10}^{6}$

5 0

2 years ago

Read 2 more answers