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ANTONII [103]
3 years ago
7

Carl puts $1.10 in his penny bank every day in the month of July (31 days). His total savings was $55.00 at the end of June, wha

t's the best estimate for Carl's savings at the end of July?
Mathematics
2 answers:
brilliants [131]3 years ago
8 0
The total amount of money that he would have is $89.10
PIT_PIT [208]3 years ago
6 0

Answer:

If it was iready it would be $85 dollars!

Step-by-step explanation:

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Match each percent amount to its correct value. Tiles 15% of 30 30% of 45 60% of 7 23% of 20
Naddik [55]
15% of 30 = 4.5
30% of 45= 13.5
60% of 7= 4.2
23% of 20= 4.6
8 0
3 years ago
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Let f(x)=x2−2x−4 . What is the average rate of change for the quadratic function from x=−1 to x = 4?
goblinko [34]

Answer:

The average rate of change for f(x) from x=−1 to x = 4 is, 1

Step-by-step explanation:

Average rate A(x) of change for a function f(x) over [a, b] is given by:

A(x) = \frac{f(b)-f(a)}{b-a}

As per the statement:

f(x) = x^2-2x-4

we have to find the average rate of change from x = -1 to x = 4

At x = -1

f(-1) = (-1)^2-2(-1)-4 = 1+2-4 = -1

and

at x = 4

f(4) = (4)^2-2(4)-4 = 16-8-4 = 4

Substitute these in [1] we have;

A(x) = \frac{f(4)-f(-1)}{4-(-1)}

⇒A(x) = \frac{4-(-1)}{4+1}

⇒A(x) = \frac{5}{5}

Simplify:

A(x) = 1

Therefore, the average rate of change for f(x) from x=−1 to x = 4 is, 1

4 0
3 years ago
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Evaluate: 6.7 × $99.99 =<br> O $692.43<br> O $106.69<br> O $669.93<br> O $14.92
Lilit [14]
The answer is $669.93
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Help me
lakkis [162]

Answer:

1/6x.(-18) is the answer

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A runner is running a 10 km race. It takes her 17.5 minutes to reach the 2.5 km mark. At that rate, how long will it take her to
Alinara [238K]

Answer:

At her current rate it will take here 70 minutes to finish the race


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3 years ago
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