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iren [92.7K]
3 years ago
6

Write an algebraic expression to describe the combined number of posts for Jenny and Antonio after any given number of days

Mathematics
1 answer:
Charra [1.4K]3 years ago
3 0
Suppose Jenny publishes X post per day, and Antonio publishes Y post per day.
So, the combined number of posts will be X+Y multiplied by the number of days.

For example, if the numbers of days is Z, Jenny and Antonio published Z(X+Y) posts.
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ddd [48]

Answer: Yes the win level is greater than 1/2

Step-by-step explanation: 32/52 is greater than 1/2

8 0
3 years ago
1write 28/15 as a decimal
stepan [7]
1. 28/15 as a decimal is <span>1.86666666666667 

2. 
</span><span>the number is divisible by 3. </span>

<span>Additionally, we know 120,000 is divisible by 3, 18,000 is divisible by 3, 420 is divisible by 3, and 15 is divisible by 3.

I hope this helps! I didn't do the last one my friend did but he thinks it's right. Please correct me if wrong.</span>
3 0
4 years ago
The wholesale price of a basketball was $10.00. The store marked it up an additional 120%. What was the sale price?
Lerok [7]

Answer:

The sale price was 54.55 but if you round it up its 55 hope i helped!

Step-by-step explanation:

5 0
3 years ago
Which equation represents the magnitude of an
Basile [38]

Answer:

M=\log{(100S)}

Step-by-step explanation:

The <em>Richter scale</em>, the standard measure of earthquake intensity, is a <em>logarithmic scale</em>, specifically logarithmic <em>base 10</em>. This means that every time you go up 1 on the Richter scale, you get an earthquake that's 10 times as powerful (a 2.0 is 10x stronger than a 1.0, a 3.0 is 10x stronger than a 2.0, etc.).

How do we compare two earthquake's intensities then? As a measure of raw intensity, let's call a "standard earthquake" S. What's the magnitude of this earthquake? The magnitude is whatever <em>power of 10</em> S corresponds to; to write this relationship as an equation, we can say 10^m=S, which we can rewrite in logarithmic form as m=\log{S}.

We're looking for the magnitude M of an earthquake 100 times larger than S, so reflect this, we can simply replace S with 100S, giving us the equation

M=\log{(100S)}.

To check to see if this equation is right, let's say we have an earthquake measuring a 3.0 on the Richter scale, so 3=\log{S}. Since taking 100 times some intensity is the same as taking 10 times that intensity twice, we'd expect that more intense earthquake to be a 5.0. We can expand the equation M=\log{(100S)} using the product rule for logarithms to get the equation

M=\log{(100S)}=\log{100}+\log{S}

And using the fact that \log{100}=2 and our assumption that \log{S}=3, we see that M=2+3=5 as we wanted.

3 0
4 years ago
X2-9=16 find x. X2 is x squared
Andrei [34K]

Answer:

x=5

Step-by-step explanation:

Isolate the x by adding 9 on both sides:

x^{2}  =25

Take the square root of both sides:

\sqrt {x^2} =\sqrt{25}

Simplify:

<u>x=5</u>

6 0
3 years ago
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