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Greeley [361]
4 years ago
9

Find a rational number that is between 7.7 and 7.9. Explain why it is rational

Mathematics
2 answers:
Gnoma [55]4 years ago
5 0

Answer:

7.8

Step-by-step explanation:

One rational number can be 7.8

It is rational because it has terminating decimal expansion

Sophie [7]4 years ago
3 0
There are a lot of rational number between 7.7 and 7.9, but the problem asked to find only one ratio number, so I will choose one which is 7.8. 7.8 is a rational number because ration number means that it can change into a fraction or improper fraction.
Now, let's change 7.8 into the fraction
First of all, change this into mixed number:
7.8
=7 8/10
=7 4/5
Then, change this into improper fraction.
Step 1:
Numerators:
7×5+4=39
Step 2:
Denominator
5, so your final answer will be 39/5. Hope it help!
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M×10+m×13=138<br><br>sorry theres another loll I'm so bad at these
Dimas [21]
So first of all you would add the two together
so it would be m23.

138÷23 would equal 6,

therefore m would equal six

to check it substitute m for 6 and you should get 138!
7 0
3 years ago
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dimulka [17.4K]

Answer:

$46.272

Step-by-step explanation:

6 0
2 years ago
Y is inversely proportional to V1+x.<br> When x = 8, y = 2.<br> Find y when x = 15.
murzikaleks [220]

Answer:

y = 1.5

Step-by-step explanation:

Given x is inversely proportional to \sqrt{1+x} , then the equation relating them is

y = \frac{k}{\sqrt{1+x} } ← k is the constant of proportion

To find k use the condition when x = 8, y = 2

2 = \frac{k}{\sqrt{1+8} } = \frac{k}{\sqrt{9} } = \frac{k}{3} ( multiply both sides by 3 )

6 = k

y = \frac{6}{\sqrt{1+x} } ← equation of proportion

When x = 15 , then

y = \frac{6}{\sqrt{1+15} } = \frac{6}{\sqrt{16} } = \frac{6}{4} = \frac{3}{2} = 1.5

6 0
3 years ago
I need help I dont understand
kap26 [50]

Answer:

5

Step-by-step explanation:

Slope intercept form is where y= mx + B where M is the slope and B is the y-intercept

5 0
3 years ago
Find the length of the missing side.
ryzh [129]

Answer:

  85 ft

Step-by-step explanation:

The Pythagorean theorem tells you the length of the hypotenuse (c) is related to the lengths of the legs (a, b) of a right triangle by ...

  c^2 = a^2 +b^2

  c^2 = (40 ft)^2 +(75 ft)^2 = 7225 ft^2

  c = √(7225 ft^2) = 85 ft

The length of the missing side is 85 ft.

3 0
3 years ago
Read 2 more answers
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