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icang [17]
1 year ago
7

a friend is having trouble with exponents and asks you to review some worked probelems look over the problems and correct any mi

stakes find the correct answer and explain the error in the student's reasoning

Mathematics
1 answer:
Stella [2.4K]1 year ago
4 0

We have the following expression:

2x^2y\cdot3x^5y^2

By combining similar terms, we get

2\cdot3\cdot x^2\cdot x^5\cdot y\cdot y^2

now, 2 times 3 is 6 and to add exponents, both the exponents and variables should be alike:

x^2\cdot x^5=x^{2+5}=x^7

Similarly,

y\cdot y^2=y^{1+2}=y^3

Therefore, the answer is

6x^7y^3

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LenaWriter [7]

Answer: 6

Step-by-step explanation:

Let use the subsitution method . Look at 11=x+y let get y on the side by itself. 11=x+y 11-x=y Then we are going to subsitute 11-x for y in the top equation so it look like 20.00=2.50x+1.00(11-x). 20.00 =2.50x+11-x. Let simplify and we get 1.50x+11=20. Subtract 11 from both sides we get 1.50x=9. Divide 1.5 by 9 and we get  x= 6.

8 0
2 years ago
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timofeeve [1]

Answer: $J/3 + $5

Step-by-step explanation:

Here is the complete question:

Angela shared a cab with her friends. When they arrived at their destination, they evenly divided the $j fare among the 3 of them. Angela also paid a $5 tip. How much did Angela pay in total?

Write your answer as an expression.

Answer:

From the question, we are told that Angela shared a cab with her friends and when they arrived at their destination, they shared equally the $j fare among the 3 of them while Angela also paid a $5 tip.

The total number of friends are =3

The amount of fare = $ J

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4 0
3 years ago
Find the discount.<br> Original price: $0.75<br> Discount: ??<br> Sale price: $0.15
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Answer:

80%

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0.75 ⇒ 100%

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0.75x = 100·(0.15)

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Operant conditioning, right?

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