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aliina [53]
2 years ago
10

What is the total of 2 3/5 kg and 3 9/10 kg

Mathematics
1 answer:
Degger [83]2 years ago
4 0
6.5 kilograms is the answer
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Mr. Bean starts selling Burly Bean Breakfast Burritos at school in the morning. The equation
lubasha [3.4K]
I think the answer is A
3 0
3 years ago
Brainliest right now!!!!
svlad2 [7]
<h3>Answer:</h3>
  1. A
  2. B
<h3>Step-by-step explanation:</h3>

1. A decrease of 3.8% is equivalent to a multiplier fraction of -0.038. The only answer choice that has such a multiplier is A.

In an instance such as this, the "rate" is usually some (fractional) change in some period of time. Since the exponent must be unitless, the rate is effectively (some fraction) "per year" so that multiplying by "t" years cancels the units and results in a pure number.

___

<em>Comment on the exponential</em>

If the actual change were -3.8% per year, the exponential term would look like (1 - 0.038)^t = 0.962^t. By writing it as e^(-0.038t), the decrease is effectively compounded continuously. As a result, over a year's time, the decrease is actually about 3.73%, not 3.8%.

_____

2. If ║x/2║ is a magnitude function, answer choices B and D are equivalent. Thus, we must assume it is a "greatest integer" function. Then the number of desserts prepared will be ║x/2║, and the corresponding revenue will be 1.2║x/2║. Since x is in minutes, 2 to 4 hours will be 120–240 minutes. The appropriate choice is B.

7 0
2 years ago
Y varies inversely with x k=2.8 what is the value of x when y is 22.4
igor_vitrenko [27]
Xy = k is the inverse variation formula.
22.4x = 2.8
divide both sides by 22.4
x = 1/8
6 0
3 years ago
Please help me with these
pantera1 [17]

Answer:

domain: x ≥ -5

range: y ≥ 0

Step-by-step explanation:

notice the equation contains √x + 5

since anything inside a square root must not be negative, the domain is restricted to x + 5 ≥ 0 so solving for x, we have:

x ≥ -5 as the domain.

by inspecting the graph, the range is:

y ≥ 0

i hope this helps !!

3 0
3 years ago
Find the inverse of the function: f(x)=1/5x+4
Greeley [361]

Answer:

B. {f}^{ - 1} (x) = 5x - 20

Step-by-step explanation:

f(x) =  \frac{1}{5} x + 4

y =  \frac{1}{5} x + 4

x =  \frac{1}{5} y + 4

\frac{1}{5} y + 4 = x

y + 20 = 5x

y = 5x - 20

\boxed{\green{{f}^{ - 1} (x) = 5x - 20}}

5 0
3 years ago
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