3 years ago

5x+3<7+7x Please explain in clear details

Mathematics

1 answer:

trasher [3.6K]3 years ago

4 0

Answer:

5x just means 5 times so, 5 times a number(or variable)plus three is less than 7 times a number variable)plus 7

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22.5

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Solve the inequality:<br> 4 +5t < 19

iogann1982 [59]

4 + 5t < 19
Subtract 4 from both sides
5t < 19 - 4 or 5t < 15
Divide both sides by 5
t < 3

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3 years ago

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Slope intercept form of slope 5 and (2,3)<br><br> explain please!

Bingel [31]

Answer:

Step-by-step explanation:

The slope-intercept form:

$y=mx+b$

m - slope

b - y-intercept

We have the slope m = 5. Therefore we have the equation

$y=5x+b$

Put the coordinates of a given point (2, 3) to the equation:

x = 2, y = 3

$3=5(2)+b$

$3=10+b$ <em>subtract 10 from both sides</em>

$-7=b\to b=-7$

Finally:

$y=5x-7$

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3 years ago

A wireless cafe charges $5.40 for 3/4 hour of Internet access. How much does the cafe charge per hour?

Debora [2.8K]

5.40/x=0.75/1

cross multiply:
0.75x=5.40

divide:
0.75x/0.75=5.40/0.75

x=$7.20

just to check:
5.40/3=1.8

1.8*4=7.2

the answer is $7.20 for 1 hour

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