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3 years ago

I need some one to write a passage

Mathematics

1 answer:

allochka39001 [22]3 years ago

6 0

Part A is 2.5 x $10^{-5}$ because the decimal place has been moved five times to the left, which makes it negative.

Part B is
First, find what the diameters of both things are written out.
1 x $10^{-5}$ = .00001
1 x $10^{-4}$ = .0001

Now find out how many times the size of a cell has to be multiplied to equal the diameter of a grain of sand.

.00001 x 10 = .0001
.0001 = 1 x $10^{-5}$

So the diameter of a grain of sand is 10 times longer than the diameter of the average cell in the human body.

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3 years ago

A store sells candy at $.50, $1, $1.50, $2, and $3 per kilogram. You can see that the unit price of candies and the amount of ca

Alecsey [184]

Answer:

Constant of variation = 3

Step-by-step explanation:

Given that a store is selling different candies costing $.50, $1, $1.50, $2, and $3 per kilogram.

As given

Amount available to buy candies = $ 3

Suppose

Unit price of candies = x

Number of candies bough = y

Constant of variation = k

As we know the unit price of candies and number of candies bought vary inversely. As the unit price would increase the the number of candies bought in available amount ($3) would decrease.

So our formula to calculate formula for constant of variation would be as shown below:

k= xy →(1

Case 1

if we take unit price x to be $0.5, then we can buy 6 kg of candies in $ 3. In this case constant of variation can be found from above equation (1) as follows:

k = (0.5)(6) = 3

Case 2

if we take unit price x to be $1, then we can buy 3 kg of candies in $ 3. In this case constant of variation can be found from above equation (1) as follows:

k = (1)(3) = 3

Case 3

if we take unit price x to be $1.5, then we can buy 2 kg of candies in $ 3. In this case constant of variation can be found from above equation (1) as follows:

k = (1.5)(2) = 3

Case 4

if we take unit price x to be $2, then we can buy 1.5 kg of candies in $ 3. In this case constant of variation can be found from above equation (1) as follows:

k = (2)(1.5) = 3

Case 4

if we take unit price x to be $3, then we can buy 1 kg of candies in $ 3. In this case constant of variation can be found from above equation (1) as follows:

k = (3)(1) = 3

So, our constant of variation is 3.

4 0

4 years ago

What is the value of x?

kipiarov [429]

Answer:

25/6

Step-by-step explanation:

5 x 5/6 = 25/6

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3 years ago

On a test with 25 problems,grace got 88% correct how many problems did grace get correct

Tom [10]

you multiply .88 by 25 which is 22. So that means that grace got 22 questions correct. Hope this helps.

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3 years ago

Read 2 more answers