Answer:
15a^7b^4
Step-by-step explanation:
add exponents that have the same base
multiply the 5 and 3 together to get fifteen
add 2 and 5 to get a to the power of 7
add 3 and 1 (the b is to the power of 1) to get b to the power of 4
I answered C for that question.
Divide 5/8 by 13 2/3 and you should get your answer.
X = soft tacos
y = double deckers
Dory:
3x + 3y = 11.25
Nemo:
4x + 2y = 10.00
---Now to solve for x and y---
---We find LCM of either x or y then make them cancel each other---
Dory multiply by 2:
6x + 6y = 22.50
Nemo multiply by 3:
12x + 6y = 30.00
--eliminate y---
Nemo subtract Dory:
6x = 7.50
Therefore x = 7.50 <em />÷ 6 = 1.25
---Now substitute x = 1.25 in either equation.---
Dory:
3.75 + 3y = 11.25
Therefore 3y = 11.25 - 3.75
therefore 3y = 7.50
there fore y = 2.50
y = 2.50 , x = 1.25
Sorry, that this is so long, I hope you understand. This is called simultaneous equations, you can read up on it.
Answer:
Hey there!
See below.
Step-by-step explanation:
Solution:
Marked Price=₹200 and Selling price=₹120
Discount =M.P-S.P= ₹200-₹120=₹80
Therefore discount on goods is ₹80.
![Also, Discount \% = \frac{discount}{marked \: price} \times 100\%](https://tex.z-dn.net/?f=Also%2C%20Discount%20%5C%25%20%3D%20%20%5Cfrac%7Bdiscount%7D%7Bmarked%20%5C%3A%20price%7D%20%20%5Ctimes%20100%5C%25)
![= \frac{80}{200} \times 100](https://tex.z-dn.net/?f=%20%20%3D%20%5Cfrac%7B80%7D%7B200%7D%20%20%5Ctimes%20100)
![= 40\%](https://tex.z-dn.net/?f=%20%3D%2040%5C%25)
- Hence, discount per cent on goods is 40%.
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