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frutty [35]
3 years ago
11

Find the solution of the system of equations. 5x +y = 35 -5x + 5y = -5

Mathematics
1 answer:
kherson [118]3 years ago
6 0

Answer:

Y = 5

X= 6

Step-by-step explanation:

I just solved it by my mind you just check it

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Please help due in 3 minutes will give brainliest.
Andrew [12]

Answer:

75x

Step-by-step explanation:

6 0
3 years ago
Each of the students at piano recital takes about 8 3/4 minutes to introduce themselves and play 3 songs. There are 9 students p
Tomtit [17]

For this case we have that each student takes 8 \ frac {3} {4} minutes to perform and play 3 songs. Then, we convert the mixed number to a fraction:

8 \frac {3} {4} = \frac {4 * 8 + 3} {4} = \frac {32 + 3} {4} = \frac {35} {4}

Thus, each student takes\frac {35} {4} minutes.

If there are 9 students in the recital then we have:

9 * \frac {35} {4} = \frac {315} {4} = 78.75 minutes.

Thus, the recital lasts at least 78.75 minutes.

Answer:

The recital lasts at least 78.75 minutes.

5 0
3 years ago
A postcard is 7 inches wide and 3 inches tall. What is its perimeter?
Alexxx [7]

Answer:

21

Step-by-step explanation:

P=LxW

21=3x7

7 0
3 years ago
Ted needs an average of at least 70 on his three history tests. He has already scored 85 and 60 on two tests. What is the minimu
baherus [9]
He must get a 65 as a minimum grade on his third test to get an average of 70.
Equation is
                       85 + 60 + x
                     ------------------- greater than or equal to 70
                              3
3 0
3 years ago
Factor the following expression. Simplify your answer.<br> 3s(s - 1)^1/3 + 2(s - 1)^4/3
denis23 [38]

Answer:

Step-by-step explanation:

3s\sqrt[3]{s-1} + 2 \sqrt[4/3]{s-1} =\\3s\sqrt[3]{s-1} + 2 \sqrt[1/3]{(s-1)^4} =\\3s\sqrt[3]{s-1} + 2 (s-1)\sqrt[1/3]{s-1} =\\\sqrt[3]{s-1}*(3s + 2 (s-1)) =\\\sqrt[3]{s-1}*(3s + 2s-2)) =\\\sqrt[3]{s-1}*(5s -2) \\

6 0
2 years ago
Read 2 more answers
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