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3 years ago

Is there always a real number between any two real numbers?

Mathematics

1 answer:

Zinaida [17]3 years ago

3 0

Answer:

yes

Step-by-step explanation:

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Find two numbers if there sum is 7.2 and their difference is 2.7

Sidana [21]

Answer:

2.25 and 4.95

Step-by-step explanation:

x + y = 7.2

x - y = 2.7

x = 7.2 - y

x - y = 2.7

(7.2 - y) - y = 2.7

7.2 - 2y = 2.7

-2y = 2.7 - 7.2

-2y = -4.5

-2y/-2 = -4.5/-2

y = 2.25

x + y = 7.2

x + 2.25 = 7.2

x = 7.2 - 2.25

x = 4.95

Check: 4.95 and 2.25

x + y = 7.2

(4.95) + (2.25) = 7.2

7.2 = 7.2

x - y = 2.7

(4.95) - (2.25) = 2.7

2.7 = 2.7

6 0

3 years ago

Read 2 more answers

Write the expression as a monomial in its standard form.<br><br> 9/16p^7 ⋅ (-4/3p^4)

Aleksandr-060686 [28]

Answer:

-3/4 p^11

Step-by-step explanation:

9/16p^7 ⋅ (-4/3p^4)

Multiply the numbers together

9/16 * -4/3 = -3/4

Now multiply the variables

p^7 * p^4

We know that a^b* a^c = a^(b+c)

p^(7+4) = p^11

Putting these back together

-3/4 p^11

6 0

3 years ago

Read 2 more answers

Find the Area of the figure.<br> 4x - 3<br> 2x + 1

andrezito [222]

Answer:

4x 32x + 1 = 28x + 1

Step-by-step explanation:

4x-32x+1

=-28x+1

7 0

3 years ago

The cost of a length of fabric is proportional to the number of yards purchased. The graph shows this relationship.

posledela

Unit rate means how much does it cost for 1 item for example...if you can download 2 songs for $5 how much did it cost to download 1 song...you would simply take $5 divided by 2 to get $2.50

In this case we have 5 yards of fabric for $18 so all we have to do is take $18 divided by 5 to find out how much just 1 yard costs.

so $18 divided by 5 is $3.60 so the unit rate cost per yard is $3.60

to make sure this is correct you can check your answer like this. If it is $3.60 for 1 yard how much would it be for 5 yards? Multiply $3.60 and 5 if we get $18 then our answer is correct. $3.60 x 5 does equal $18 so we were correct

3 0

3 years ago

Mike forgot to replace the cap on a bottle of room freshener. The room freshener began to evaporate at the rate of 15% per day.

Serggg [28]

For this case we have a function of the form:
$y = A * (b) ^ x
$
Where,
A: initial amount
b: decrease rate
x: time in days
Substituting values we have:
$y = 40 * (0.85) ^ x
$
Therefore, the graph of the function is a decreasing exponential function in the first quadrant and that has an initial value of 40.
Answer:
graph of exponential function going from left to right in quadrant 1 through the point 0, 40 and approaching the x axis

7 0

3 years ago