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Reptile [31]
3 years ago
9

How to do 4x + 5 equals 8

Mathematics
1 answer:
satela [25.4K]3 years ago
5 0
4x + 5 = 8

First, take away '5' from both sides.
4x = 8 - 5
Second, subtract '8 - 5' to get '3'.
4x = 3
Third, divide both sides by '4'.
x =  \frac{3}{4}

Answer as fraction: x =  \frac{3}{4}
Answer as decimal: x = 0.75

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On a coordinate plane, 2 lines are shown. Line P Q has points (negative 8, 2) and (4, 2). Line M N has points (8, 6) and (8, neg
DaniilM [7]

Answer:

Slope of PQ = 0

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Step-by-step explanation:

for any two points  (x1, y1),  (x2, y2)given in coordinate plane slope is given by

y1 - y2/x1-x2\\\\For \ line \ PQ\\slope = 2 - 2/-8-4 = 0\\\\For \ line \ MN \\slope = 6 - (-8)/8-8 = 1/0 = infinity\\\\

For any line if slope is zero it is parallel  to X axis and perpendicular to Y axis

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Also we know X and Y are perpendicular to each other.

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Since slope of MN is infinity it is parallel  to Y axis and perpendicular to X axis.

Thus two lines PQ and MN are perpendicular to each other.

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3 years ago
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sasho [114]

Answer:

186.5 + 2x

Step-by-step explanation:

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Second, divide within the parentheses. You're expression should look like this.

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Divide 42/8. The decimal form would be 5.25, while the fraction should be 5 1/4.

Third, solve within the parentheses from left to right. Right now you're expression should look like this:

(93-5+x+5.25)2

Add all like terms

93-5+5.25=93.25

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