2 years ago

-5x+4y=3 x=2y-15 please help me

Mathematics

1 answer:

defon2 years ago

7 0

Y = 5
That is the answer to your question

You might be interested in

When no net force is applied to a moving object, it still comes to rest because of its inertia.

mafiozo [28]

Answer:

A true

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

On the blueprint of a house, 40 millimeters represents 6 meters. The length of the living room is 50 millimeters on the blueprin

Novay_Z [31]

Answer:

Convert the meters to millimeters

1m = 1000mm

6m = 6000mm

40mm represents 6000mm

Find the scale factor

6000/40 = 150

This means 40 * 150 = 6000

Yup find what 50mm represents:

50 * 150 = 7500

7500mm

7.5m

6 0

3 years ago

If y is directly proportional to x square and y equal 1/8 when x = 1/2 what is the positive value of x when y it was 9/2?

mojhsa [17]

Answer:

Step-by-step explanation:

Given y is directly proportional to x² then the equation relating them is

y = kx² ← k is the constant of proportion

To find k use the condition y = $\frac{1}{8}$ when x = $\frac{1}{2}$ , then

$\frac{1}{8}$ = k( $\frac{1}{2}$ )² = $\frac{1}{4}$ k ( multiply both sides by 8 )

1 = 2k ( divide both sides by 2 )

k = $\frac{1}{2}$

y = $\frac{1}{2}$ x² ← equation of proportion

When y = $\frac{9}{2}$ , then

$\frac{9}{2}$ = $\frac{1}{2}$ x² ( multiply both sides by 2 )

9 = x² ( take the square root of both sides )

x = ± $\sqrt{9}$ = ± 3

with positive value x = 3 → d

8 0

3 years ago

What is 90% of 50? Someone please help. I have to write this for my question to get a good answer.

irina1246 [14]

45÷50=90%
if that is what you are looking for

8 0

3 years ago

Read 2 more answers

The quotient of a number and 6 is less than 20.

ozzi

Answer:

$\frac{x}{6}$ < 20

Step-by-step explanation:

hope this help idrk how to explain this one lol

6 0

3 years ago