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frozen
21 day ago
7

A pitcher of water at 40 degrees Fahrenheit is placed into a 70 degree room. One hour later, the temperature has risen to 45 deg

rees. How long will it take for the temperature to rise to 60 degrees?
Mathematics
1 answer:
Inessa [9K]21 day ago
8 0

Answer:

3 hours

Step-by-step explanation:

The temperature change after an hour shows an increase of 5 degrees. To calculate how long it takes to reach 60 degrees, we first find the difference from the current temperature to 60 degrees.

60 - 45 = 15 degrees

Since a rise of 5 degrees occurs in one hour, we divide 15 by 5 to find out how many hours are needed to reach 60 degrees.

15 / 5 = 3 hours

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The graphs of f(x) = 10x and its translation, g(x), are shown. On a coordinate plane, 2 exponential functions are shown. f (x) a
PIT_PIT [9117]

Answer:

g(x)=(10)^{x-3}

Detailed explanation:

* Let’s clarify the procedure for solving this problem

- An exponential function can be expressed as f(x)=a(b)^{x}, where

 a signifies the starting amount (x = 0), and b denotes the growth factor

- If b > 1, it qualifies as an exponential growth function

- If 0 < b < 1, it is categorized as an exponential decay function

- Horizontal translation to the right by h units results in the new function being g(x)=a(b)^{x-h}

- Conversely, if translated to the left by h units, the function modifies to g(x)=a(b)^{x+h}

 the new function will be

- A vertical upward shift by k units alters the function to g(x)=a(b)^{x}+k

- A vertical downward shift by k units means the new function accounts for g(x)=a(b)^{x}-k

* Now, let’s solve the problem

∵ f(x) is an exponential function

∵ The points (0, 1), (1, 10), (2, 100) are points of f(x)

- g(x) is the transformation of f(x)

∵ The points (3, 1), (4, 10), (5, 100) belong to g(x)

∵ The point (0, 1) on f(x) transforms to (3, 1) on g(x)

∵ The point (1, 10) on f(x) transforms to (4, 10) on g(x)

∵ The point (2, 100) on f(x) translates to (5, 100) on g(x)

∵ Notably, all y-coordinates of f(x) match those of g(x)

 indicating no vertical translation

∴ Hence, no vertical translation occurred

∵ The x-coordinates of f(x) are increased by

   3 units to yield the x-coordinates for g(x)

∴ This shows that f(x) is translated 3 units to the right

∵ f(x)=(10)^{x}

∴ g(x)=(10)^{x-3}

- Refer to the corresponding graph for greater clarity

# The red curve denotes f(x)

# The blue curve signifies g(x)

4 0
12 days ago
Read 2 more answers
each day last week I sold 32, 45, 47, 63 and 72 product accessories. What was the median number of accessories sold for the week
AnnZ [9099]

Answer:

The median value is 47.

Step-by-step explanation:

First, organize the numbers in ascending order.

The median's position is calculated as ((N+1)÷2)th term, where N is the amount of data.

= 6÷2 th term

= 3 rd term

<ptherefore the="" term="" is="" identified="" as=""> </ptherefore>
4 0
1 month ago
The calculation needed to find the cost of the factory tour was $5(29 students). Melissa used the expression $5(20 + 9). Mrs. Ga
AnnZ [9099]
Honestly, I find Mrs. Garcia's method easier to perform mentally. It hinges on how familiar you are with your multiples of 5. (5*15 = 75 is a multiplication I often use)

Melissa's approach involves calculating 5*20 = 100 and 5*9 = 45, then combines the 3-digit result 100 with the 2-digit result 45, yielding 145. Adding 45 to 00 is simple and doesn’t require carrying digits, thus the arithmetic is fairly straightforward.

Mrs. Garcia's technique involves computing 5*14 = 70 and 5*15 = 75, then summing these two-digit results. Many people may not readily recall that 5*15=75, which complicates forming that product. The addition of 70 and 75 requires a carrying operation, making the math somewhat more complex. The resulting total is 145.

(The rationale behind my preference for Mrs. Garcia's method is that I can achieve the final sum by simply doubling 7 tens, followed by adding 5. The only 3-digit number to remember mentally is the ultimate total.)

_____Subtraction introduces a slight complication, yet reshaping it as $5(30 -1) = $150 - 5 = $145 is possible.
Or, you may reframe it as $5(28 +1) = $140 +5 = $145.
Dividing an even number by 2 to find the product of 5 is straightforward when you append a zero.
  5*14 = 10*7 = 70
  5*28 = 10*14 = 140.
7 0
17 hours ago
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Problem Select three ratios that are equivalent to 11:111:111, colon, 1. Choose 3 answers: Choose 3 answers: (Choice A) A 1:111:
Inessa [9000]

Answer:

(Choice B) B 22:222:222, colon, 2

(Choice C) C 55:555:555, colon, 5

(Choice D) D 99:999:999, colon, 99

Step-by-step explanation:

Three ratios that correspond to 11:111:111

(Choice A) A 1:111:111, colon, 11

By dividing by 1

= 1: 111: 111

(Choice B) B 22:222:222, colon, 2

Dividing by 2

= 11: 111: 111

(Choice C) C 55:555:555, colon, 5

Dividing by 5

= 11: 111: 111

(Choice D) D 99:999:999, colon, 99

Dividing by 9

= 11: 111: 111

(Choice E) E 110:10110:10

Dividing by 10

11: 1011: 1

The corresponding ratios are:

(Choice B) B 22:222:222, colon, 2

(Choice C) C 55:555:555, colon, 5

(Choice D) D 99:999:999, colon, 99

5 0
16 days ago
Vinny is serving punch to guests at a party. He has 2/3 of a gallon of punch, and he pours 3/64 of a gallon into each guest's cu
PIT_PIT [9117]
To determine how many 3/64 gallon servings can be filled from a total of 2/3 gallon of punch, perform the division of 2/3 by 3/64. The outcome is not a whole number, but this method illustrates the solution. Vinny's total is 2/3 of a gallon of punch, with each guest receiving a measure of 3/64 gallon, which tells us how many can be accommodated by performing<span> (2/3) / (3/64).</span>
7 0
19 days ago
Read 2 more answers
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