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RideAnS [48]
3 years ago
8

How do you calculate the rate of change in a table of values?

Mathematics
1 answer:
Paha777 [63]3 years ago
4 0

Answer:

Rate of change is 1/2

Step-by-step explanation:

To find rate of change:

find y2( second y value) and y1 (1st y-value)

y2-y2 over x2-x1

subtract

y over x

divide.  voila!

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If y = 45 when x = 180, what is the y when x= 90
bearhunter [10]

Answer:

24.5

Step-by-step explanation:

Since 180 is double 90 divide 45 by 2 and you'll get 24.5

6 0
2 years ago
Can someone help me?<br><br><br>2x-3y= -1 <br>y=x-1<br><br>​
MrRissso [65]
X=4 & y=3

Explanation:

Picture
5 0
2 years ago
Write a ratio, in the simplest form and a percent for the shaded area (there's a 5x4 box and 6 cubes are shaded)
Alexxandr [17]

Answer:

\%Percent = 30 \%

Step-by-step explanation:

Given

Shaded = 6\ cubes

Box = 5\ x\ 4

Required

Determine the percentage of the shaded cubes

First, we calculate the number of boxes:

Box = 5\ x\ 4

Express as multiplication

Box = 5\ *\ 4

Box = 20

This implies that there are 20 cubes in the box.

The percentage of the shaded cubes is:

\%Percent = \frac{Shaded}{Box} * 100\%

\%Percent = \frac{6}{20} * 100\%

\%Percent = \frac{6* 100}{20} \%

\%Percent = \frac{600}{20} \%

\%Percent = 30 \%

<em>30% were shaded</em>

5 0
2 years ago
What are the zeros of f(x) = x2 + x - 20?
jeyben [28]

Answer:

x = - 5, x = 4

Step-by-step explanation:

Given

f(x) = x² + x - 20

To find the zeros equate f(x) to zero, that is

x² + x - 20 = 0

Consider the factors of the constant term ( - 20) which sum to give the coefficient of the x- term ( + 1)

The factors are + 5 and - 4, since

5 × - 4 = - 20 and + 5 - 4 = + 1, hence

(x + 5)x - 4) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

x - 4 = 0 ⇒ x = 4

8 0
3 years ago
Read 2 more answers
Find the solution to the following system by substitution.
ASHA 777 [7]

Answer:

(5,15)

Step-by-step explanation:

A.

5 0
2 years ago
Read 2 more answers
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