Hey there!
To solve this problem, first divide the numbers 240 and 6 . . .
240 divided by 6 = 40
Since Selma had 6 times as many coins as she did 4 months ago, the number of coins 4 months ago times the number 6 should equal 240.
40 x 6 = 240
The number 40 is correct.
Selma had 40 coins 4 months ago.
Hope this helps you.
Have a great day!
Answer:
<em>Exponential decay function</em>
Step-by-step explanation:
The given table represents some function between x and y:
x - 3 - 6 - 9 - 12
y - 2401 - 343 - 49 - 7
We are required to find if it's exponential growth, decay, or neither.
An exponential function is identified because each term is calculated as the previous term multiplied by a constant factor.
The linear relationship is identified because each term is calculated as the previous term plus a constant difference.
Note the values of x grow three by three and the values of y are constantly divided by 7 or multiplied by 1/7.
There is a common factor and not a common difference. Since the common factor is less than 1, the function is exponential decay.
Bonus: The exponential function is:
This given problem asks for the y-intercept of the linear equation.
The first step we need to is to transform the original equation into its slope-intercept form, y = mx + b (where m = slope, and b = y-intercept).
3x = 5y - 6
Subtract 3x on both sides:
3x - 5y - 3x = - 3x - 6
-5y = - 3x - 6
Divide both sides by -5:
-5y/-5 = (- 3x - 6) / -5
y = 3/5x + 6/5 (This is the slope-intercept form).
To solve for the y-intercept of the line, we must set x = 0 (because the y-intercept is the value of y when x = 0). The coordinate of the y-intercept is (0, b).
y = 3/5x + 6/5
y = 3/5(0) + 6/5
y = 0 + 6/5
y = 6/5
Therefore, the y-coordinate of the point where ‘L’ cuts the y-axis is 6/5.
Answer:
3 ³/5
Step-by-step explanation:
18/5 = ( 3×5=15 remaining 3)
= 3 ³/5
Answer:
D) 5 1/6 < 5 13/30 < 5 68/90
Step-by-step explanation:
The best way to determine which value is greater is to find the decimal form of each fraction.
5 1/6 = 5.16...
5 13/30 = 5.43...
5 68/90 = 5.75...