derlerry derlerry

13-07-2015
Mathematics

contestada

If y varies directly as x, and y=25 as x=5, find y when x=7.

Respuesta :

13-07-2015

[tex]Direct\ variation:y=kx \\ \\ y=kx \\ 25=5k \\ \frac{25}{5}=k \\ 5=k \\ \\ y=5x \\ y=5(7) \\ y=35 [/tex]

Answer Link

Otras preguntas

Communication in the nervous system depends on which are electrical impulses that travel from neuron to neuron

True or false: an area that needs very fine movements, like the fingers or eyes, will have larger motor units.

The function t(x) = 4x + 3 determines how many cans of hot sauce a food truck needs to stock on board, where x is the number of shifts the crew is going to work

A factor that plays an important role in determining how strenuously and when you exercise

which of the following is an example of kinetic energy? Options: A) A car sitting motionless B)a sled sitting at the top of a hill C) a girl running in a race

What is the value of the two-digit integer x ? (1)the sum of the two digits is 3. (2)x is divisible by 3?

A number has a 5 in the tens place. The number of ones is 3 less than the number of tens. The number of hundreds is 1 less than the number of ones. What is the

What policies did calvin coolidge favor to support economic growth?

18. Which sentence uses the correct form of the verb? A Rita have a cat named Jupiter. B She also have a dog named Juno. C Jupiter have no problem with Juno.

"a client with a new diagnosis of type 1 diabetes is told that lifelong insulin will be needed. the client becomes agitated and says, "i am scared of shots. if