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emmasim [6.3K]
3 years ago
13

In 1980, the average cost of a pack of cigarettes was $0.88. In 2000, the average cost was $5.31 per pack.

Mathematics
1 answer:
yan [13]3 years ago
8 0

Answer:

The average rate of change of the cost of a pack is 22 cents per year.

Another name for the average <em>rate of change</em> is <em>slope</em>.

Step-by-step explanation:

The average rate of change of the cost of a pack (r), in monetary units per year, is equal to the change in the average cost of a pack (\Delta c), in monetary units, divided by the change in time (\Delta t), in years. Then, the average rate of change is:

r = \frac{\$\,5.31-\$\,0.88}{2000-1980}

r = \$\,0.22\,\frac{1}{yr}

The average rate of change of the cost of a pack is 22 cents per year.

Another name for the average <em>rate of change</em> is <em>slope</em>.

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olga55 [171]
Answer is 25 x 2x + 729/25

6 0
3 years ago
Compare rates of change.
MrMuchimi
Y=foot
x=foram

A. easy, plug 17 for x and evaluage for y
y=0.860(17)+3.302
y=14.62+3.302
y=17.922 inches


B. rate of change is slope
y=mx+b
m=slope
so
rate or change is 0.860 inches per legnth of forarm

C. what data

D. it is a function
since it is 1st degree (no exponents greater than 1 on the placeholder), and it is not a vertical line
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3 years ago
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Anna11 [10]

La forma estándar de una ecuación de un círculo es% 28x-h% 29% 5E2 +% 2B +% 28y-k% 29% 5E2 + = + r% 5E2

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x ^ 2 + y ^ 2-10x + 4y + 4 = 0

completando los cuadrados para ponerlos en la forma estándar

x ^ 2 -10x + y ^ 2 + 4y + 4 = 0

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<h2>Given that</h2>

Reduce the equation; \rm  7y +2y ^2 - 7 by \rm 3 - 4y.

<h3>According to the question</h3>

To reduce the given equation follow all the steps given below.

Reduce the equation; \rm  7y +2y ^2 - 7 by \rm 3 - 4y.

To reduce the equation means we need to subtract one equation from another.

Then,

The reduction from the equation is,

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Hence, the reduction from of the equation is \rm  -2y^2+11y-10.

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6 Winston I got the addy and
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