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rodikova [14]
3 years ago
11

Help! I cant solve this

Mathematics
2 answers:
KatRina [158]3 years ago
5 0
In one month, there are on average 30 days.

So if he talks 135 minutes per month, he talks on average 135/30 minutes per day

135/30 = 4.5

So on average he talks to his grandfather for 4 minutes and 30 seconds a day.
Anvisha [2.4K]3 years ago
3 0
The answer is 4.5, because you divide 135/30
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A certain company's main source of income is selling cloth bracelets. The company's annual profit (in thousands of dollars) as a
tester [92]

Answer:

8 thousand dollars

Step-by-step explanation:

The company's annual profit (in thousands of dollars) as a function of the price of a bracelet (in dollars) is modeled by: P(x)=-2x^2+16x-24

To find maximum profit , we need to find out the vertex

x coordinate of vertex formula is -b/2a

P(x)=-2x^2+16x-24

a=-2  and b = 16

x= \frac{-b}{2a}= \frac{-16}{2(-2)} = 4

Now we plug in 4 for x  and find out P(4)

P(x)=-2(4)^2+16(4)-24= 8

So the maximum profit the company can earn is 8 thousand dollars when price = $4


6 0
3 years ago
Read 2 more answers
Hello can u please help
Andrei [34K]

y = mx + b

-3 = -2(-5) + b

-3 = 10 + b

-13 = b

y = -2m - 13

The line would pass through -13 on the y-axis and it would go down 2 and move to the right 1 for every new point.

Hope this helps! ;)

6 0
3 years ago
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Write an inequality that expresses the range in the volume of acceptable tennis balls.
Rudik [331]

Answer:

the smallest number is the lower bound and the largest number is the upper bound, your inequality would be

8.2 ≤ x ≤ 9.5, where x represents the volume of tennis balls.

4 0
3 years ago
0.361, 0.35, 1/5, 0.36 greatest to least
bixtya [17]
.361 .36 .35 1/5

1/5 = .20
6 0
3 years ago
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Necesit. la versión en español plz 9
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