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Rudik [331]
4 years ago
8

What is the value of x in the equation 4x + 8y =40 when y =0.8

Mathematics
1 answer:
Neko [114]4 years ago
7 0
Y = 0.8

4x + 8y = 40

4x + 8*(0.8) = 40

4x + 6.4 = 40

4x = 40 - 6.4

4x = 33.6

x = 8.4
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SSSSS [86.1K]

Answer:

X from 0 to 21

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Step-by-step explanation:

Since we are being asked by the integration limits in first octant (positive x, positive y and positive z) we need to know where does the plane intersect this axes. For this we have:

for x=0 and y=0

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for x=0 and z=0

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for z=0 and y=0

x=21

This means that the integration limits are:

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3 years ago
Solve the system using elimination.<br> 4x-7y =6<br> x-7y = 9<br> The solution is ??
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Answer:

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Step-by-step explanation:

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3 years ago
If there are 70 dogs to every 5 cats how many dogs are there to 70 cats
bixtya [17]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Completing the Square
Softa [21]

Answer:

C.7, -2

Step-by-step explanation:

A quadratic equation is a polynomial of degree two. A quadratic equation is in the form:

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Solving the equation 2x² - 10x - 20 = 8 using completing the square:

2x² - 10x - 20 = 8

2x² - 10x = 28

Divide through by 2, to make the coefficient of x² to be 1:

x² - 5x = 14

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x² - 5x + 6.25 = 14 + 6.25

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taking square root of both sides:

x - 2.5 = √20.25

x - 2.5 = ±4.5

x = 2.5 ± 4.5

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6 0
3 years ago
First correct answer gets best marks ​
Mandarinka [93]

Answer:

the answer would be x is less than 6.

Step-by-step explanation:

the reason why it would not be x is less than or equal to 6 is that the circle is not filled in.

6 0
3 years ago
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