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gulaghasi [49]
3 years ago
8

5x-2y=8 solve for y

Mathematics
1 answer:
Westkost [7]3 years ago
4 0

5x-2y=8\ \ \ \ |-5x\\\\-2y=8-5x\ \ \ |:(-2)\\\\y=-4+2.5x\\\\\boxed{y=2.5x-4}

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If the base of a rectangular prism has an area of 2x^2+3x sq in. The volume of the perimeter is 6x^3+13x^2+6x cubic in. Which ex
Ksenya-84 [330]

Answer:

The answer to your question is 3x + 2

Step-by-step explanation:

Data

Area of the base = 2x² + 3x in²

Volume of the prism = 6x³ + 13x² + 6x in³

Height = ?

Process

1.- Divide the Volume of the prism by the area of the base to get the height

                                       3x   +    2

                     2x² + 3x   6x³  +  13x²  +  6x            

                                      -6x³  -    9x²

                                        0    +   4x²   +  6x

                                              -    2x²   -   6x

                                                     0          0

2.- Conclusion

The height of the rectangular prism is 3x + 2

3 0
4 years ago
In a two-digit number the tens digit is four less than the units digit. Seven times the tens digit plus five times the units dig
ANTONII [103]

Good morning ☕️

Answer:

<h2>37</h2><h2 />

Step-by-step explanation:

Let our number be “ xy ”

the tens digit is four less than the units digit means y-4=x

Seven times the tens digit plus five times the units digit is equal to 56 means

7x+5y=56

now we have to solve the system:

y-4=x  (1)

7x+5y=56  (2)

(1) ⇒ y=4+x

Then we substitute y by 4+x into the second equation like this:

7x+5(x+4)=56

⇔ 7x+5(x+4)=56

⇔ 12x+20=56

⇔ x = 3

now using equation (1) we get : y=3+4 = 7

:)

4 0
3 years ago
There are 40 students in a class and 55% of these students passed their Chemistry test. What number of these students passed the
Natalija [7]

Answer:

22 students

Step-by-step explanation:

55% of 40 equals 22

6 0
3 years ago
What is 1591 x 5672 please help
Mama L [17]
9024152 Would be your answer! 
5 0
3 years ago
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Hugo took a math test with 40 questions. If he got 75% of the answers correct, how many did he answer incorrectly?
Harlamova29_29 [7]

Answer:\

10

Step-by-step explanation:

25 % correct ie, 40 * 25/100

=10

plz mark as brainliest!!

7 0
3 years ago
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