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2 years ago

Can someone help me with this question please (brainiest and 50 points)

Mathematics

2 answers:

seropon [69]2 years ago

7 0

Answer:

Stephanie read more than 7 books.

Step-by-step explanation:

We are given the equation y= 8x

First, lets break down the equation given.

y represents the total amount of points.
x represents each book read.

Since Stephanie gained a total of 72 points, then y = 72. The value of x is unknown and is the value that we need to figure out as it will tell us how many books Stephanie read.

72= 8x

Simply divide both sides by 8.

$\frac{72}{8} =\frac{8x}{8}$

$9=x$

Remember, x represents each book read. Stephanie read 9 books. So, Stephanie read more than 7 books.

sergiy2304 [10]2 years ago

5 0

Answer: Stephanie read more than 7 books because 8 points for 9 books each is equal to 72 points, which is the total amount of books she read.

Step-by-step explanation:

72 ÷ 8 × 9

x = 9

Hope this helped! :D

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Solve for x.

Tcecarenko [31]

Answer: x=-1

Step-by-step explanation:

8-3x-x=12

-3x-x=-4x

8-4x=12

-8 -8

-4x=4

-4x/-4=4/-4

x=-1

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3 years ago

Read 2 more answers

(-1,-2) and (3, -162) a. Is there a line th(at goes through these two points? How do you know? If there is one, what is the equa

lana [24]

Answer:

The equation of line for given points is y = - 40 x - 42

Step-by-step explanation:

Given two points as :

( -1 , - 2 ) and ( 3 , - 162 )

Now, Equation of line in points form

y - $y_1$ = m × ( x - $x_1$ )

Where m is the slope of line

And, m = $\frac{y_2 - y_1}{x_2 - x_1}$

or, m = $\frac{ - 162 + 2}{ 3 + 1}$

or, m = $\frac{ - 160}{ 4}$

∴ m = - 40

So, Slope of line for given points is - 40

Now equation of line can be written as

y - ( - 2 ) = ( - 40 ) × ( x - ( - 1 ) )

or, y + 2 = ( - 40 ) × ( x + 1 )

or, y + 2 = - 40 x - 40

or, y = - 40 x - 40 - 2

∴ y = - 40 x - 42

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3 years ago

What is the trigonometric ratio for sin C ? Enter your answer, as a simplified fraction.

Contact [7]

By definition we have to:
Sin (x) = C.O / h
Where,
x = angle
C.O = opposite leg
h: hypotenuse.
Substituting values we have:
Sin (C) = AB / 82
We should look for AB. For this, we use the following relationship:
AB ^ 2 + 80 ^ 2 = 82 ^ 2
Clearing AB:
AB = root ((82 ^ 2) - (80 ^ 2))
AB = 18
Substituting we have:
Sin (C) = 18/82
Simplifying:
Sin (C) = 9/41

Answer:
the trigonometric ratio for sin C is:
Sin (C) = 9/41

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3 years ago

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beks73 [17]

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3 years ago

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shutvik [7]

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3 years ago