Answer:
3789
Step-by-step explanation:
Answer:
If, a = 2 and b = 3
<h3>Jada</h3><h3>
</h3>
It's not equivalent.
<h3>Diego</h3><h3>
</h3>
It's equivalent.
The correct equation is 4a + 9b.
Answer:
5x
Step-by-step explanation:
Answer:
18- 300
20- 1,500
22- 300
Step-by-step explanation:
You can easily find the answer like this:
18. Multiply 60 and 100 together. The hundred is from 100%. After that, divide it by 20 because of the percent. After doing this, you should get 300.
20. 360*100=36,000 36,000/24= 1,500
22. 9*100=900 900/3=300
I hope this is what you were looking for. If you need more out of this, ask me to answer it again. :)
Let n = cost of 1 notebook
Let p = cost of 1 pencil
Then,
3n + 4p = 8.5
5n + 8p = 14.5
You can solve for one variable in terms of the other and then substitute into the remaining equation.
3n + 4p = 8.5
+ 5n + 8p = 14.5
Multiply the top equation by -2 so that the p-containing terms cancel each other out:
-2(3n + 4p = 8.5)
+ 5n + 8p = 14.5
-n + 0 = -2.5
So after dividing both sides by -1, we see that n = $2.5. Plugging into the first equation gives p = $0.25.
3n + 4p = 8.5
5n + 8p = 14.5
