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Aleonysh [2.5K]
3 years ago
7

−4(4 − x) = 4/5(x + 12)

Mathematics
1 answer:
navik [9.2K]3 years ago
5 0

Answer:

8.0625

Step-by-step explanation:

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Is z=4x+9y literal or not
miskamm [114]

Answer: Yes

Explanation: The equation has 3 variables

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3 years ago
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Help Please!!
iren2701 [21]

Answer:

50 miles per hour

Step-by-step explanation:

Here,

Time=  8 hours

Distance=400 miles

The speed is calculated by dividing the distance by time.

So,

Average Speed=Distance/Time

=  400/5

=50 miles per hour

4 0
3 years ago
Three less than 2 times a number is 55. What is the number?
-Dominant- [34]
Let the number be x.

2x-3=55
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2x=52
x=52/2
x=26
6 0
3 years ago
Like an echo in the forest...​
Vladimir [108]

Answer:

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5 0
3 years ago
Solve for x {x+4]= 6
wlad13 [49]

The solution to the equation x(x+4) = 6 is x = -2 + √10 or x = -2 - √10 after solving with the quadratic formula.

<h3>What is a quadratic equation?</h3>

Any equation of the form \rm ax^2+bx+c=0 where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

As we know, the formula for the roots of the quadratic equation is given by:

\rm x = \dfrac{-b \pm\sqrt{b^2-4ac}}{2a}

We have an equation:

x(x + 4) = 6

By distributive property:

x² + 4x = 6

x² + 4x - 6 = 0

a = 1, b = 4, c = -6

Plugging all the values in the formula:

\rm x = \dfrac{-4 \pm\sqrt{4^2-4(1)(-6)}}{2(1)}

After calculating:

\rm x = \dfrac{-4 \pm\sqrt{40}}{2}

\rm x=-2+\sqrt{10},\ \ \ or \ \ \ x=-2-\sqrt{10}

Thus, the solution to the equation x(x+4) = 6 is x = -2 + √10 or x = -2 - √10 after solving with the quadratic formula.

Learn more about quadratic equations here:

brainly.com/question/2263981

#SPJ1

6 0
2 years ago
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