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3 years ago

John has $80. Every week, he spends $7.

1 answer:

3 0

John would have 52 dollars left by the fourth week.
7(dollars spent each week) x 4 ( number of weeks)=28 (spent in 4 weeks)

80 - 28 =52

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Is y=17 a linear function ?

STALIN [3.7K]

Y=17 is not a linear function,the term refers to two distinct but similar notions

7 0

3 years ago

What is an equation of the line that passes through the point (8,-8)(8,−8) and is perpendicular to the line 4x-3y=184x−3y=18?

Kitty [74]

Answer:

The equation of the line is $y = -\frac{3x}{4} - 2$

Step-by-step explanation:

Equation of a line:

The equation of a line has the following format:

$y = mx + b$

In which m is the slope and b is the y-intercept.

Perpendicular lines:

When two lines are perpendicular, the multiplication of their slopes is -1.

Perpendicular to the line 4x-3y=18

First, we place this line into the format, to find the slope:

$4x - 3y = 18$

$3y = 4x - 18$

$y = \frac{4x}{3} - 6$

This line has slope 4/3. So, for the perpendicular line, the slope will be of m as such:

$\frac{4m}{3} = -1$

$4m = -3$

$m = -\frac{3}{4}$

So the desired line will have an equation in the following format:

$y = -\frac{3x}{4} + b$

Passes through the point (8,-8)

We use this to find b. This point means that when $x = 8, y = -8$ . So

$y = -\frac{3x}{4} + b$

$-8 = -\frac{3*8}{4} + b$

$-8 = -6 + b$

$b = -2$

$y = -\frac{3x}{4} - 2$

8 0

3 years ago

Solve and graph the inequality

aksik [14]

Multiply all with 5 to get rid of fraction.
5( 4/5x + 5 ) < 5(-3)
5(4/5x) + 25 < -15
4x + 25 < -15
Separate x
4x < -15 -25
4x < -40
x < - 10

:D

7 0

4 years ago

HELPPPP!!!!!

denpristay [2]

A is the correct answer

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3 years ago

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What is 3/38 x 4/13 ?

Aliun [14]

Answer:

Step-by-step explanation:

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4 years ago

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