All categories

4 years ago

Multiple Choice Suppose y varies directly as x. if y = 5 when x=8, find y when x=64

Mathematics

1 answer:

Juliette [100K]4 years ago

6 0

Answer:

Step-by-step explanation:

y∞x

then

y=kx (with k as constant)

y=5 when x=8

⇒Putting this in the first equation

⇒5=k×8

⇒k=5/8

Now

y=? when x=64

Putting x=64 in the first equation

y=kx

⇒y=(5/8)×64

We get

y=40

Hope u understand

You might be interested in

-8xc = 1 solve for x

Nastasia [14]

Answer:

[-8c]⁻¹ = x

Step-by-step explanation:

-8xc = 1

____ ___

-8c -8c

$x = - \frac{1}{8c} \\ \\ or \\ \\ x = ({ -8c})^{-1}$

This, according to the Negative Exponential Rule [Reverse], is how you write this as a rational exponent. You bring the denominator to the numerator while ALTERING THE INTEGER SYMBOL FROM POSITIVE TO NEGATIVE:

b⁻ⁿ = 1\bⁿ

I am joyous to assist you anytime.

3 0

3 years ago

A playground is 58 M wide and 91 what is the perimeter

cestrela7 [59]

Step-by-step explanation:

To get the perimeter, add up all of the sides.

So, the playground is a rectangle.

It has two sides measuring 58m, and two measuring 91m.

58+58+91+91=298

For the area, length x width

58x90=5278

5 0

2 years ago

Two times the sum of a number and three is not equal to eight

jarptica [38.1K]

Could be the sum is 1 and then 2 times 2 which equals 4 then 5 then plus 3 it is 8 so wrong

8 0

3 years ago

A radio station is giving away tickets to a play. They plan to give away tickets for

galben [10]

Answer:

IDK

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

The price of an iphone was reduced from $960 to $840. By what percentage was the price of the iphone reduced?

Taya2010 [7]

Answer:

13.5%

Step-by-step explanation:

I hope this helps

5 0

3 years ago